CN106880914A - A kind of air purifying respirator system and its helmet - Google Patents

Abstract

The present invention discloses a kind of air purifying respirator system and its helmet, wherein, the helmet includes the ring body being adapted with human body head and the mask located at the ring body, and the ring body inside has annular cavity, and the ring body is additionally provided with air inlet and gas outlet；The air inlet is used to be input into pure air, and the gas outlet connects with the mask, so that the breathing area that pure air is entered between the mask and human body face by the annular cavity.The helmet of air purifying respirator system provided by the present invention, its agent structure is ring body, when in use, the crown of human body can't be covered, the evaporation of human body head sweat can be easy to, user can obtain preferably Consumer's Experience when prolonged outdoor exercises are carried out.

Description

A kind of air purifying respirator system and its helmet

Technical field

The present invention relates to technical field of air purification, more particularly to a kind of air purifying respirator system and its helmet.

Background technology

In recent years, with the continuous aggravation of China's air pollution, harmful substance in air serious harm health, The especially appearance of haze, air pollution has turned into mankind's great environmental problem and health problem urgently to be resolved hurrily,

At present, the measure of conventional reply air pollution is mainly：Breathed using various forms of purification of air indoors Device, in the filtering type anti-dust respirator of outdoor application, and the helmet-type air-purifying respirator for occurring recently.

Filtering type anti-dust respirator is although easy to use, but sealing is poor, and actual filter effect is not notable, and it makes It is shorter with timeliness.And to be people perform physical exercise and the main place of activity for outdoor, when people are when outdoor activity or motion is carried out, The respiratory capacity of human body can be improved, and now, if wearing above-mentioned anti-dust respirator, can greatly increase the resistance of breathing, not only can shadow Performance during motion is rung, the life security of people can be also influenceed when serious.

Helmet-type air-purifying respirator is a kind of portable aerial respiration cleaning system, generally include purifier and The helmet, purifier is worn on the waist of human body, and by appendix for the helmet provides pure air；The helmet is wearable in human body Head, and being connected with the face of human body, so be directly mouth, the respiratory apparatus such as nose pure air is provided.In use, can lead to The feed speed for becoming the purifier with more different capacity to adjust pure air is crossed, so as to meet rest, room in people room Respiratory demand under the different situations such as outer slight motion, outdoor strenuous exercise；Additionally, the air purifier of this helmet-type is used It is more convenient, smaller is influenceed on human motion.

But, the helmet used by above-mentioned helmet-type air-purifying respirator with ride the helmet or Casque for motorcycle driver it is similar, can be complete Orientation it is wrapped in the head of human body, and people are in motion process, head can discharge substantial amounts of sweat, and this helmet is just unfavorable In the evaporation of sweat.When prolonged aerobic exercise is carried out, wear this helmet and may result in dizzy, uncomfortable in chest etc., be unfavorable for The prolonged exercise of user.

Therefore, a kind of new helmet how is provided so that user can carry out prolonged outdoor exercises, be still this area Technical staff's technical problem urgently to be resolved hurrily.

The content of the invention

It is an object of the invention to provide a kind of air purifying respirator system and its helmet, the helmet can be easy to user to be grown The outdoor exercises of time.

In order to solve the above technical problems, the present invention provides a kind of helmet of air purifying respirator system, including with human body head Ring body and the mask located at the ring body that portion is adapted, the ring body inside have annular cavity, the ring Shape body is additionally provided with air inlet and gas outlet；The air inlet is used to be input into pure air, and the gas outlet connects with the mask It is logical, so that the breathing area that pure air is entered between the mask and human body face by the annular cavity.

The helmet of air purifying respirator system provided by the present invention, its agent structure is ring body, when in use, and The crown of human body will not be covered, the evaporation of human body head sweat can be easy to, user can obtain when prolonged outdoor exercises are carried out Obtain preferably Consumer's Experience.

Alternatively, also including the supporting part located at the ring body internal face, the end of the supporting part is connected with pine Tight adjusting means；The ring body includes the pars contractilis for adjusting the ring body size, by the elastic regulation Device can be adjusted in synchronism the supporting part, the size of the ring body.

Alternatively, the pars contractilis includes the outer tube, the inner sleeve that socket-connect；The outer tube is provided with the first limited block, The outer wall of the inner sleeve is provided with the second limited block, and first limited block, second limited block can offset, to avoid State inner sleeve and depart from the outer tube.

Alternatively, the pars contractilis includes bellows, and arc support is provided with the bellows.

Alternatively, the slack adjuster includes handwheel, gear, ratchet and lockwheel, and the lockwheel is fixed on the branch Support band, the handwheel, ratchet, gear can synchronous axial system, the end of the supporting part is provided with and nibbling that the gear is meshed Close tooth；When the handwheel remains static, the ratchet can be engaged with the lockwheel, to lock the supporting part；Institute When stating handwheel in rotary state, the handwheel can be engaged with the ratchet, the lockwheel, to unlock the supporting part, And the supporting part motion as described in the gear driven, to adjust the size of the supporting part.

Alternatively, the ratchet includes ratchet body, and the periphery of the ratchet body is provided with some convex of radially evagination Block, each projection is equipped with to ratchet, two ratchets for including being circumferentially extended along the ratchet body to ratchet, and two institutes The circumferentially extending for stating ratchet is in opposite direction；The lockwheel is provided with inner circular tooth, and each ratchet can offset with the inner circular tooth Connect, to limit the rotation of the ratchet；The handwheel is provided with some to rib towards the one side of the ratchet, it is described to rib with Described one-to-one corresponding to ratchet is set, and described to include two ribs to rib, two ribs to rib are respectively with described to spine The outer face of two ratchets of pawl mutually reclines；When the handwheel is in rotary state, direction and the hand wheel rotating side are circumferentially extended Pushed against by the rib for mutually reclining therewith to identical ratchet, and depart from the inner circular tooth, it is described to the another described of rib Rib offsets with the projection, to promote the ratchet with the handwheel synchronous axial system.

Alternatively, the air inlet is provided with snap-fit arrangements and the first adapter, the bottom of first adapter It is connected with external appendix, the upper end of first adapter can be connected in the snap-fit arrangements.

Alternatively, the snap-fit arrangements include shell fragment, and the internal face of the shell fragment is provided with some blocks；Described first The upper end of adapter has the circumferentially flange of evagination and the circumferentially annular necking of indent, and the annular necking is located at described The lower section of flange；When using, the flange of first adapter can push against the block, so that the shell fragment is outwards strutted； When the flange inserts the air inlet and crosses the shell fragment, to contract, each block is connected in described the shell fragment Annular necking.

Alternatively, the ring body is additionally provided with control button, and the control button is connected with unlock piece；The control is pressed When button is in down state, the unlock piece can push against the shell fragment, the shell fragment is outwards strutted, first adapter Can be separated with the air inlet.

Alternatively, also including rotating shaft, the two ends of the mask are provided with the shaft hole matched with the rotating shaft, the rotating shaft Through the shaft hole and the ring body is fixed on, the mask can be around the axis of rotation；The mask is provided with One locating part, the ring body is provided with the second locating part, and first locating part, second locating part being capable of phase interworkings Close, to limit the slewing area of the mask.

Alternatively, first locating part include three spacing gussets, spacing gusset described in three in sector be spaced apart in The periphery of the shaft hole, and limit rib plate shape described in three is into two spacing gaps；Second locating part include spacing steel ball and Two postive stop baffles；When the mask is in rotary state, different described spacing are stranded in by adjusting the spacing steel ball Gap, may be such that the mask switches using position and between raising position；In spacing gusset described in three, positioned at two limit ribs at two ends Plate postive stop baffle can stop described in two, to avoid the mask slewing area excessive and cross described accordingly use Position described is raised in position.

Alternatively, in spacing gusset described in three, some limit ribs, each limit rib are included positioned at middle spacing gusset It is intervally arranged along the bearing of trend of the spacing gusset, so as to form transition gap between two adjacent limit ribs.

Alternatively, also including the packing cloth coordinated with human body lower jaw, the mask is fixed in the outer end of the packing cloth, interior End is provided with bungee, so that the packing cloth is close to the lower jaw of human body, the mask, the packing cloth and human body face form institute State breathing area.

The present invention also provides a kind of air purifying respirator system, including the helmet and purifier, and the two passes through appendix phase Even, the helmet is the helmet of above-mentioned air purifying respirator system.

Because the helmet of above-mentioned air purifying respirator system has possessed technique effect as above, then with the helmet Air purifying respirator system will not be described here also when possessing similar technique effect.

Brief description of the drawings

Fig. 1 is a kind of structural representation of specific embodiment of the helmet of air purifying respirator system provided by the present invention Figure；

Fig. 1-1 is the structural representation at another visual angle of the helmet of air purifying respirator system provided by the present invention；

Fig. 2 is the explosive view of Fig. 1；

Fig. 3 is the structural representation of supporting part and slack adjuster in Fig. 2；

Fig. 4 is the structural representation at another visual angle of handwheel in Fig. 3；

Fig. 5 is the fundamental diagram of the slack adjuster of the helmet of air purifying respirator system provided by the present invention；

Fig. 6 is the structural representation of pars contractilis in Fig. 2；

Fig. 7 is sectional view when pars contractilis is in use state in Fig. 3；

Fig. 8-1 is second specific embodiment of the pars contractilis of the helmet of air purifying respirator system provided by the present invention Structural representation；

Fig. 8-1a are the sectional view of Fig. 8-1；

Fig. 8-2 is the third specific embodiment of the pars contractilis of the helmet of air purifying respirator system provided by the present invention Structural representation；

Fig. 9 is the structural representation of the first adapter；

Figure 10 is the structural representation of shell fragment in Fig. 2；

Figure 11 is control button, the structural representation of unlock piece in Fig. 2；

Figure 12 is the attachment structure schematic diagram of control button, unlock piece, shell fragment and the first adapter；

Figure 13 is the structural representation of the first locating part；

Figure 14 is the structural representation of the second locating part；

Figure 15-1a are the structural representation that mask is in that the first locating part, the second locating part are engaged during using position；

Figure 15-1b are the schematic diagram that mask is in that the first locating part, the second locating part are engaged during using position；

The structural representation that Figure 15-2a are engaged for the first locating part, the second locating part when mask is in transition position；

The schematic diagram that Figure 15-2b are engaged for the first locating part, the second locating part when mask is in transition position；

Figure 15-3a are the structural representation that mask is in that the first locating part, the second locating part are engaged when raising；

Figure 15-3b are the schematic diagram that mask is in that the first locating part, the second locating part are engaged when raising；

Figure 16 is the structural representation of mask；

Figure 17 is mask, edge band and the attachment structure schematic diagram for pressing bar；

Figure 18 is the partial enlarged drawing of mask and the attachment structure of edge band；

Figure 19 be provided with edge band, press bar mask structural representation；

Figure 20 is the structural representation of purifier；

Figure 21 is the explosive view of Figure 20；

Figure 22 is the structural representation of shackle member；

Figure 23 is the structural representation of the second adapter；

Figure 24 is the use state figure of air purifying respirator system provided by the present invention.

Description of reference numerals in Fig. 1-2 4 is as follows：

1 ring body；

11 air inlets, 111 first adapters, 111a flanges, the necking of 111b annulars, 112 shell fragments, 112a blocks, 112b are curved Folding part, 112c lock rings；

12 pars contractilis, 121 outer tubes, the limited blocks of 121a first, 121b limited blocks mounting hole, 121c position-limit foots, 121d behaviour Make hole, the shielding plates of 121e first, the shielding plates of 121f second, 122 inner sleeves, the limited blocks of 122a second, 123 sealing rings, 124 ripples Pipe, 124a arc supports；

13 front portions, 131 spacing steel balls, 132 postive stop baffles, 133 convex eaves, 14 rear portions, 141 control buttons, 142 unlock pieces, 142a pushing blocks；

2 masks, 21 rotating shafts, 22 shaft holes, 23 spacing gussets, 231 limit ribs, 231a transition gaps, 232 spacing gaps, Bar, 281 hanging holes are pressed in 24 packing cloths, 25 blend stops, 26 spacing holes, 27 edge bands, 271 hanging columns, 272 spacing preiections, 28；

3 supporting parts, 31 inner liners, 32 engaging tooths；

4 slack adjusters, 41 handwheels, 411 ribs, 42 gears, 43 ratchets, 431 ratchet bodies, 432 projections, 433 spine Pawl, 433a up times ratchet, 433b inverse times ratchet, 44 lockwheels, 441 inner circular tooths, 45 first mounting brackets, 46 second mounting brackets；

5 appendixs, 51 second adapters, 511 screens are raised；

Housing in 6 purifiers, 61 housings, 611 upper shells, 611a air inlets, 612,613 lower houses, 613a power keys, 613b gears indicator lamp, 613c bluetooths key, 631d battery capacity indication lamps, 613e air outlets, 613f vibrating motors, 62 filter assemblies, 621 filter screen fixtures, 622 composite screens, 63 power supply modules, 64 control assemblies, 65 fan assemblies, 66 buckles, 67 shackle members, 671 blocked holes；

7 waistbands；

A buffering sufaces, B mounting surfaces.

Specific embodiment

In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real The present invention is described in further detail to apply example.

" some " specifically described herein are the uncertain multiples of exponential quantity, usually two or more；And when using " some " tables When showing the quantity of certain several part, it is impossible to which the quantity for being interpreted as these parts is identical.

The word such as " first " specifically described herein, " second " is for only for ease of the same or like two or more of description scheme Part or structure, be not offered as certain particular determination to order.

Embodiment 1

Fig. 1-5 are refer to, Fig. 1 is a kind of specific embodiment of the helmet of air purifying respirator system provided by the present invention Structural representation, Fig. 1-1 for air purifying respirator system provided by the present invention the helmet another visual angle structural representation, Fig. 2 is the explosive view of Fig. 1, and Fig. 3 is the structural representation of supporting part and slack adjuster in Fig. 2, and Fig. 4 is handwheel in Fig. 3 The structural representation at another visual angle, Fig. 5 is the slack adjuster of the helmet of air purifying respirator system provided by the present invention Fundamental diagram.

As shown in Fig. 1, Fig. 1-1 and Fig. 2, the present invention provides a kind of helmet of air purifying respirator system, including with human body Ring body 1 and the mask 2 located at the ring body 1 that head is adapted, the inside of ring body 1 have annular cavity, annular Body 1 is additionally provided with air inlet 11 and gas outlet (not shown).Air inlet 11 is used to be input into pure air, gas outlet and mask 2 connections, so that the breathing area that pure air is entered between mask 2 and human body face by annular cavity.

The helmet of air purifying respirator system provided by the present invention, its agent structure is ring body 1, when in use, The ring body 1 can't cover the crown of human body, can be easy to the evaporation of human body head sweat, and user is carrying out prolonged family During outer motion, preferably Consumer's Experience can be obtained.

The internal face of above-mentioned ring body 1 can be provided with the inner liner 31 of softness, when user wears the helmet, inner liner 31 are directly in contact with head forehead, the back side of head and head periphery, can improve comfortableness when wearing；Meanwhile, the inner liner 31 Certain protective effect can also be played to human body head, it is to avoid during vigorous exercise, the rubbing of being caused to skin of head of ring body 1 Wear evil；Additionally, the inner liner 31 can also have the function of absorbing sweat, to avoid head sweat during prolonged exercise from flowing into The discomfort that the positions such as eyes are brought.Specifically, the inner liner 31 can be foam-rubber cushion, cotton pad or other softnesses, can inhale Receive the pad of sweat.

Still as shown in Fig. 2 the helmet provided by the present invention can also include supporting part 3, the supporting part 3 can be by mounting etc. Mode is located at the internal face of ring body 1, and its end can be connected with slack adjuster 4, to adjust the big of the supporting part 3 It is small, and then cause that the helmet can be adapted with the head of different crowd, to increase the applicable crowd of the helmet；Meanwhile, Yong Hu When using can according to their needs and adjusting helmet is elastic, it is possible to use family obtains more preferable experience.

Based on the setting of above-mentioned supporting part 3, foregoing inner liner 31 can be bonded in the support by modes such as VELCROs With 3 internal face, and because the size of the supporting part 3 is adjustable, the quantity of above-mentioned inner liner 31 can be multiple, multiple inner liners 31 can be spaced apart along the bearing of trend of supporting part 3, to be pullled the undue of inner liner 31 during avoiding supporting part 3 from adjusting Or extruding.

As shown in figure 3, above-mentioned slack adjuster 4 can include handwheel 41, gear 42, ratchet 43 and lockwheel 44, lockwheel 44 can be fixed on supporting part 3, handwheel 41, ratchet 42 and gear 43 can synchronous axial system, and the end of supporting part 3 can be provided with The engaging tooth 32 being meshed with gear 42.

When handwheel 41 is not rotated, ratchet 43 can be engaged with lockwheel 44, and then lock support band 3, to avoid passing through Pull supporting part 3 itself and the change of the size of supporting part 3 that causes.In this way, human body is in motion, supporting part 3 i.e. will not be because of Human body head the reason such as swings and voluntarily changes size so that in whole motion process, the helmet can keep user to be adjusted Size, and the head of human body is stably worn on, to ensure the experience of user to a greater degree.

And when handwheel 41 is rotated, handwheel 41 can be engaged with ratchet 43, lockwheel 44, to release the locking of supporting part 3 State, and drive supporting part 3 to move by the gear 42 with handwheel synchronous axial system, to adjust the size of supporting part 3.

Specifically, as in Figure 3-5, ratchet 43 includes ratchet body 431, and the periphery of ratchet body 431 can be provided with edge Some projections 432 of radially outwardly projecting, each projection 432 can be provided with to ratchet, and ratchet can be included along ratchet body 431 weeks To two ratchets 433 for extending, and the circumferentially extending of two ratchets 433 is in opposite direction.

Lockwheel 44 is provided with inner circular tooth 441, and each ratchet 433 of ratchet 43 can be abutted against with inner circular tooth 441.Due to spine The circumferentially extending of two ratchets 433 in pawl is in opposite direction, and when handwheel 41 is not rotated, the inner circular tooth 441 of lockwheel 44 can be along suitable Hour hands, both direction counterclockwise are abutted against with above-mentioned two ratchet 433, and then limit the rotation of ratchet 43.

Handwheel 41 can be provided with some to rib towards the one side of ratchet 43, and rib is set with being corresponded to ratchet, Two ribs 411 can be included to rib, and this pair of two ribs 411 of rib can be outer with two ratchets 433 to ratchet respectively End face mutually reclines.

It is appreciated that by above-mentioned each ratchet 433 is formed by projection 432 along the circumferentially extending of ratchet body 431, respectively Between ratchet 433 and ratchet body 431 can self-assembling formation gap, when there is external force pressure, each ratchet 433 can be to ratchet body 431 are close to, and then are separated with inner circular tooth 441.

For ease of description, above-mentioned two ratchets 433 to ratchet can be renamed, it is circumferential suitable along ratchet body 431 The ratchet 433 that clockwise extends referred to as up time ratchet 433a, and the spine extended counterclockwise for 431 weeks along ratchet body Pawl 433 is referred to as inverse time ratchet 433b.

With Fig. 5 as visual angle, when handwheel 41 is not rotated, up time ratchet 433a, inverse time ratchet 433b can be with inner circular tooths 441 Abut against, to limit the voluntarily rotation of ratchet 43.Specifically, supporting part 3, the engaging tooth of supporting part 3 are pullled when there is external force 32 drive gears 42, ratchet 43 are produced when rotating clockwise trend, and inner circular tooth 441 can provide up time ratchet 433a side counterclockwise To pushing force, to limit the rotation of ratchet 43, and then lock support band 3；Similarly, when exist external force order about ratchet 43 produce it is inverse When hour hands rotate trend, inner circular tooth 441 also can provide clockwise pushing force to inverse time ratchet 433b, equally can reach limit Ratchet processed 43 is rotated, lock support is with 3 effect.

And when hand wheel rotating, as a example by rotating clockwise, up time ratchet 433a is subject to the institute of rib 411 for mutually reclining therewith The clockwise pushing force for providing, up time ratchet 433a can depart from inner circular tooth 441 and is close to ratchet body 431, and then The lock-out state between ratchet 43 and lockwheel 44 is released, and the rib 411 reclined with inverse time ratchet 433b phase can then promote projection 432 so that ratchet 43 synchronously can be rotated, and then band moving gear 42, engaging tooth 32 are moved with handwheel 41, to adjust supporting part 3 size, after adjustment is finished, up time ratchet 433a, inverse time ratchet 433b can be abutted against with inner circular tooth 441 again again, then Secondary lock support band.Handwheel 41 rotates counterclockwise similar with foregoing description to adjust the process of the size of supporting part 3, does not do herein Repeat.

Using the slack adjuster 4 of constituted above, when handwheel 41 is not rotated, ratchet 43 is engaged with certainly with lockwheel 44 Row lock support band 3, it is ensured that supporting part 3 maintains adjusted size all the time when using, the use of the user that is more convenient for；And hand Wheel 41 can immediately release the cooperation lock-out state of ratchet 43, lockwheel 44 once rotating, it is ensured that adjust supporting part by handwheel 41 The convenience and promptness of 3 sizes, the quick regulation of the user that is more convenient for.

It should be appreciated that the above-mentioned slack adjuster 4 including handwheel 41, gear 42, ratchet 43, lockwheel 44 is only this hair A kind of preferred scheme of bright embodiment, under conditions of regulatory function is met, above-mentioned slack adjuster 4 can be prior art In any adjustable support with 3 elastic devices.

It should be noted that the embodiment of the present invention to above-mentioned projection 432, to ratchet, to the particular number of rib is not made Limit, in the specific implementation, structure is configured during those skilled in the art refers to accompanying drawing 3-5, also dependent on actual feelings The quantity of the condition selection above-mentioned each part of setting.

Further, since said gear 42, ratchet 43 remain synchronous axial system, the two integrally manufactured formation can be combined Part, in order to batch micro operations, quick production, for details, reference can be made to Fig. 3, and the one side of the sub-assembly is ratchet 43, and another side is then Gear 42；Said gear 42, ratchet 43 can also be manufactured individually, and then between by the mode such as welding or bonding Connecting shaft is installed, it is also ensured that the synchronous axial system of the two.

Please continue to refer to Fig. 2 and Fig. 3, above-mentioned slack adjuster 4 can also include that the first mounting bracket 45 and second is installed Frame 46, the two can mutually be fastened, and form mounting box.Two ends of above-mentioned supporting part 3 and slack adjuster 4 can be located at the peaces In mounted box, on the one hand can ensure the reliability and compactedness of each part connection, it is to avoid user is to gear 42, ratchet during use The contact of 43 grade core components, it is ensured that each part it is long-term, effectively use；On the other hand, also may be such that the slack adjuster 4 Outward appearance it is more aesthetically pleasing.

It should be appreciated that slack adjuster 4 can't cause the forfeiture of its regulatory function in mounting box, it is specific real , can be exposed to a part for handwheel 41 outside mounting box by Shi Shi, in order to the direct regulation of user；Or, can be in the installation Knob is set, and knob can synchronize rotation with handwheel 41, in this way, directly turn knob is the big of adjustable supporting part 3 outside box Small, regulation process is more convenient.

Still as shown in figure 1, above-mentioned ring body 1 can also include the pars contractilis 12 for adjusting the size of ring body 1, and Because foregoing supporting part 3 is located at the internal face of ring body 1, operation slack adjuster 4 is same to adjust the size of supporting part 3 When, can also be adjusted in synchronism the size of ring body 1.

It is arranged such, when the size of supporting part 3 is adjusted, ring body 1 can synchronously be stretched, to avoid ring body Limitation of 1 internal face to the adjustable range of supporting part 3 so that the big I of the helmet of the present invention has bigger adjusting range.

Further, since the setting of above-mentioned pars contractilis 12, can be divided into anterior 13 and rear portion 14, anterior 13 by ring body 1 Can be connected with mask 2, and air inlet 11 can then be located at rear portion 14, and be connected with external appendix 5.

Refer to Fig. 6-7, Fig. 6 is the structural representation of pars contractilis in Fig. 2, Fig. 7 is that pars contractilis is in use state in Fig. 3 When sectional view.

As shown in Figure 6 and Figure 7, the pars contractilis 12 can include the outer tube 121, the inner sleeve 122, inner sleeve that socket-connect 122 can slide in outer tube 121, to adjust the size of ring body 1.And inner sleeve 122 can be with overcoat sealing ring 123, and then ensure being tightly connected for outer tube 121 and inner sleeve 122.

Outer tube 121 can be provided with the first limited block 121a, and the outer wall of inner sleeve 122 can be provided with the second limited block 122a, two limited blocks can offset, to avoid inner sleeve 122 from departing from from outer tube 121.

Specifically, the wall of outer tube 121 can be provided with limited block mounting hole 121b, and then by overcoat sealing ring 123 Inner sleeve 122 is plugged in outer tube 121, then sets the first limited block 121a in limited block mounting hole 121b.In this way, First limited block 121a can be formed to the second limited block 122a and be stopped spacing, meanwhile, it is unlikely to influence the peace of inner sleeve 122 again Dress.

More specifically, as shown in Figure 6 and Figure 7, the first limited block 121a includes curved face part and two limiting sections, two limiting sections Located at the curved face part internal face, and it is divided into the two ends of the curved face part.The outside wall surface of the curved face part and the outer surface of outer tube 121 Match, during causing that the first limited block 121a is located at limited block mounting hole 121b, the outside wall surface of the curved face part can be with overcoat The outer surface of pipe 121 is substantially concordant, to ensure the aesthetic property of the first limited block 121a and the attachment structure of outer tube 121.It is above-mentioned The description of the expression orientation such as " interior ", " outward " or position relationship is all based on orientation or position relationship in Fig. 6 or Fig. 7, curved face part Internal face refer to its one side towards limited block mounting hole 121b, outside wall surface refers to that it deviates from limited block mounting hole 121b Face.

Position-limit foot 121c, two position-limit foot 121cs of the above-mentioned limiting section also with the two ends extension to curved face part can be with outer tubes 121 inwall offsets, to avoid the first limited block 121a from being come off from limited block mounting hole 121b.It should be appreciated that first is spacing Block 121a can have certain elasticity, and when mounted, the two ends of pressable curved face part, so that two limiting sections are close to each other, are entered And the first limited block 121a is easily plugged in limited block mounting hole 121b；As the first limited block 121a, to be plugged in this spacing During block mounting hole 121b, by the elasticity of its own, the first limited block 121a can be restored again so that two position-limit foot 121c with The inwall of outer tube 121 is offseted, and then the first limited block 121a is stably located at into outer tube 121.

The pars contractilis 12 can also be other structures, specifically refer to Fig. 8-1, Fig. 8-1a and Fig. 8-2, and Fig. 8-1 is this hair The structural representation of second specific embodiment of the pars contractilis of the helmet of bright provided air purifying respirator system, Fig. 8-1a It is the sectional view of Fig. 8-1, Fig. 8-2 is specific for the third of the pars contractilis of the helmet of air purifying respirator system provided by the present invention The structural representation of implementation method

As shown in Fig. 8-1, the pars contractilis 12 can equally include outer tube 121, the inner sleeve 122 of mutually socket, its area It is not the structure and the otherness of mounting means of the first limited block 121a and the second limited block 122a.Below will be with Fig. 8-1, figure 8-1a is described in detail for visual angle to second implementation method of the pars contractilis 12.

Above-mentioned first limited block 121a can be fixed on the internal face of outer tube 121, specifically, can be in outer tube 121 Internal face welding or bond above-mentioned first limited block 121a, or, first limited block 121a can also be by outer tube 121 Perisporium caves inward to be formed.Comparatively, welding or bond mounting means be more convenient for control the first limited block 121a shape, Installation site；And the first limited block 121a being directly recessed by the perisporium of outer tube 121 obtains more easy, batch of being more convenient for Production.

One end of above-mentioned second limited block 122a can be connected with the end of inner sleeve 122, when there is pressed by external force second During limited block 122a, second limited block 122a can be rotated around it with the junction of inner sleeve 122, and when external force disappears, Second limited block 122a can be restored again.

Specifically, the second limited block 122a can be L shaped plate, the one end and inner sleeve of the side plate of the L shaped plate away from its base plate The end of pipe 122 is connected, and the base plate of the L shaped plate is set towards the outside of inner sleeve 122.It is appreciated that for the L shaped plate, Its base plate can be formed with the first limited block 121a and stopped, inner sleeve 122 is limited in outer tube 121；And side plate is then used It is connected in inner sleeve 122, when there is pressed by external force base plate, base plate can be rotated around the junction of side plate and inner sleeve 122, when When external force disappears, by the elasticity of side plate, base plate can be returned to home position again；And the length of the side plate is more long, thickness is thinner, Its elasticity is also better, is more conducive to the rotation and resilience of second limited block 122a.

In fact, second limited block 122a can only have two kinds of working conditions, one is down state, i.e., ought exist When external force presses inward against base plate, base plate can to being pressed inside inner sleeve 122, with cause base plate from the first limited block 121a shapes Into stop, consequently facilitating inner sleeve 122 is inserted or pull out；Secondly being reset condition, i.e., state shown in accompanying drawing 8-1, when not When there is external force effect, base plate can be at home position, and can stop with the first limited block 121a phases, by inner sleeve 122 It is limited in outer tube 121.

During installation, the base plate of second limited block 122a can be first pressed, to be at down state, so as to can be easy to The insertion of inner sleeve 122a；When inner sleeve 122a just enters outer tube 121, the base plate of the second limited block 122a is by the first limit The extruding of position block 121a, can still keep down state, in order to being further inserted into for inner sleeve 122a；And work as inner sleeve 122a after During continuous insertion, the base plate of the second limited block 122a can cross the first limited block 121a, and now, by the elasticity of side plate, base plate can Recoil to reset condition such that it is able to formed with the first limited block 121a and stopped, inner sleeve 122 is limited to outer tube 122 It is interior.

With Fig. 8-1a as visual angle, the right side of above-mentioned first limited block 121a can be also set to and the inwall of outer tube 121 The inclined-plane for setting in obtuse angle, inner sleeve 121 be inserted into outer tube 122 during when, the inclined-plane can be with the second limited block The base plate of 122a offsets and sustainable for the base plate provides inward pressure, to cause that the base plate can automatically be in down state. In this way, when mounted, then applying pressing force without the base plate in advance for the second limiting plate 122a, it is more convenient for installing.

Correspondingly, the left side of the first limited block 121a then may be configured as the vertical plane perpendicular with the inwall of outer tube 121 Or the inclined-plane with the inwall setting at an acute angle of outer tube 121.In this way, when base plate crosses the first limited block 121a and returns back to original During beginning state, the left side that base plate can be preferably with first limited block 121a mutually stops, to avoid inner sleeve 122 from outer tube Depart from 121.

Further, the perisporium of above-mentioned outer tube 121 is also provided with handle hole 121d.When being changed when needing repairing, can Handle hole 121d is passed through using the bar-shaped operation element such as screwdriver, and then is pressed the base plate of the second limited block 122a and is made it In down state, to release the stop of base plate and the first limited block 121a, you can easily by inner sleeve 122 from outer tube Removed in 121.

Please continue to refer to Fig. 8-1, above-mentioned pars contractilis 12 can also include the first shutter 121e and the second shutter 121f, Above-mentioned two shutter is mountable to the outside of outer tube 121a, to block the recess (overcoat of the first foregoing limited block 121a When the perisporium of pipe 121 is recessed above-mentioned first limited block 121a) and handle hole 121d.So, on the one hand, may be such that the pars contractilis 12 outward appearance is more neat, attractive in appearance；On the other hand, direct operation of the user to handle hole 121d can be also avoided, is conducive to protecting Demonstrate,prove the stability of the structure of pars contractilis 12 and function.

It is pointed out that the embodiment of the present invention is not to above-mentioned first limited block 121a, the number of the second limited block 122a Amount makees specific restriction, and in the specific implementation, those skilled in the art can be according to actual conditions selection each limited block of setting Quantity.As shown in Fig. 8-1, the quantity of the second limited block 122a can be can have gap between two, and two limited blocks, to enter One step ground mitigates the weight of inner sleeve 122, so as to mitigate the weight that the embodiment of the present invention provides the helmet.

As shown in Fig. 8-2, the pars contractilis 12 can include bellows 124, have flexible work(due to bellows 124 itself Can, bellows 124 is connected between anterior 13 and rear portion 14, you can be conveniently adjusted the size of ring body 1.

Arc support 124a is also provided with above-mentioned bellows 124, arc support 124a can with bellows 124 in Wall mutually reclines, and supports bellows 124 so that bellows 124 can keep the arcuate structure being adapted with human body head, Jin Erbian In wearing for user.

For above-mentioned each scheme, can also be to the connection knot of the air inlet 11 of the helmet provided by the present invention and external appendix 5 Structure is further described through.

Fig. 9-12 are refer to, Fig. 9 is the structural representation of the first adapter, and Figure 10 is the structural representation of shell fragment in Fig. 2, Figure 11 is control button, the structural representation of unlock piece in Fig. 2.

Air inlet 11 can be provided with snap-fit arrangements and the first adapter 111, and the bottom of the first adapter 111 can use It is connected in external appendix 5, is specifically as follows female thread structure, appendix 5 is screwed under first adapter 111 End；The upper end of the first adapter 111 can then be connected in snap-fit arrangements.

As shown in Figure 9 and Figure 10, the upper end of above-mentioned first adapter 111 can have the flange 111a of circumferentially evagination The circumferentially annular necking 111b of indent, annular necking 111b are located at the lower section of flange 111a；Above-mentioned snap-fit arrangements can Some block 112a can be provided with the internal face including shell fragment 112, shell fragment 112.

In air inlet 11, when in use, the flange 111a of the first adapter 111 can push against gear to above-mentioned shell fragment 112 Block 112a, so that shell fragment 112 is outwards strutted, in order in first adapter 111 insertion air inlet 11；And when the first adapter 111 fully-inserted air inlets 11, i.e., when flange 111a crosses shell fragment 112, shell fragment 112 inwardly can shrink in resilience, in this way, each gear Block 112a is pluggable in annular necking 111b, and first adapter 111 is connected and fixed in air inlet 11.

Please continue to refer to Figure 10, the shell fragment 112 can be U-shaped shell fragment, and block 112a can be located at the U-shaped shell fragment two side Internal face.Using this structure, when block 112a is pushed against by external force, the two side of the U-shaped shell fragment can be along itself and bottom wall Junction outwards struts, and when external force disappears, the two side of the U-shaped shell fragment again can be along itself and the inside resilience in the junction of bottom wall Shrink.Certainly, the shell fragment 112 can also be arc spring lamination, square frame-shaped shell fragment or annular shell fragment, regardless of whether using which kind of form, As long as above-mentioned technique effect can be realized.

The two side of above-mentioned U-shaped shell fragment can be turned down to form kink 112b outwardly, and kink 112b can also be connected Having has gap between lock ring 112c, and lock ring 112c and U-shaped shell fragment two side, think outwards strutting for U-shaped shell fragment two side Space is provided.Above-mentioned lock ring 112c then can be used to position, install the U-shaped shell fragment, specifically, can be worn by connectors such as screws Cross lock ring 112c and be fixed on rear portion 14, and then position the U-shaped shell fragment.It is appreciated that above by connector and lock ring 112c Be engaged and U-shaped shell fragment be applicable not only in the way of Location resilient piece 112, be equally applicable to foregoing arc, square frame-shaped, annular or The shell fragment 112 of other shapes.

Further, control button 141 can also be included, control button 141 be connected with unlock piece 142, when pressing control During button 141, unlock piece 142 can push against shell fragment 112, shell fragment 112 is outwards strutted, and the first adapter 111 i.e. can be with air inlet Mouth 11 is separated.

Specific as shown in figure 11, control button 141 is connected with the one of unlock piece 142, so that the two can keep synchronous fortune Dynamic state, and the one side relative with shell fragment 112 of unlock piece 142 is additionally provided with pushing block 142a, when control button 141 is in down state When, pushing block 142a can offset with the internal face of shell fragment 112, to force shell fragment 112 outwards to strut, and then easily unload first Adapter 111.

More specifically, Figure 12 is refer to, Figure 12 is the connection knot of control button, unlock piece, shell fragment and the first adapter Structure schematic diagram.

With Figure 12 as visual angle, shell fragment 112 can be located inside ring body 1, and is surrounded on the periphery of air inlet 11, block 112a is located at the internal face of shell fragment 112, and points to the middle part of air inlet 11；When the first adapter 111 inserts air inlet from bottom to top During mouth 11, flange 111a offsets with block 112a first, and then pushes block 112a open, and forces shell fragment 112 outwards to strut, so as to The insertion of the first adapter 111.The outside wall surface of flange 111a can have the conical surface obliquely, and the internal face of block 112b can With with inclined-plane obliquely, by the conical surface, the cooperation on inclined-plane, flange 111a can more easily push block 112a open.

When flange 111a crosses block 112a, by the natural resiliency of shell fragment 112, block 112a again can inwardly resilience, And annular necking 111b is plugged in, to limit the axial displacement of the first adapter 111, so as to position above-mentioned first turn in the axial direction Joint 111.The second necking is also provided with below the annular necking 111b, can between second necking and the inwall of air inlet 11 Packing matcrial, to ensure the sealing of the first adapter 111 and the junction of air inlet 11.

Unlock piece 142 is placed in the top of shell fragment 112, and pushing block 142a can offset with the inwall of shell fragment 112, when pressing control During button 141 processed, unlock piece 142 can be moved down synchronously, and pushing block 142a is capable of the internal face of extrusion elastic 112, to force shell fragment 112 Outwards strut, block 112a can depart from from annular necking 111b, and then release to the spacing of the first adapter 111, first Adapter 111 can depart from from air inlet 11.Similarly, the extruding for ease of pushing block 142a to the internal face of shell fragment 112, pushing block The lower surface of 142a can have inclined-plane obliquely so that pushing block 142a can more easily push shell fragment 112 open.

The description of the expression orientation such as above-mentioned " interior ", " outward " or position relationship is for air inlet 11, to be close to The position at the middle part of air inlet 11 is referred to as " interior ", and the position away from the middle part of air inlet 11 is referred to as " outward ", for any part, The end face at its middle part of close air inlet 11 can be referred to as inner face, internal face or inwall etc., and away from the end at the middle part of air inlet 11 Face can then be referred to as outer face, outside wall surface or outer wall etc.；It is above-mentioned " on ", D score etc. represent the description of orientation or position relationship then It is that in fig. 11, vertical direction is above-below direction and puts based on the orientation or position relationship in Figure 11.

For above-mentioned each scheme, can also be to the mask 2 of the helmet provided by the present invention and the rotation connection structure of ring body 1 It is further described through.

Please continue to refer to Fig. 2, the helmet provided by the present invention can also include rotating shaft 21, the two ends of mask 2 can be provided with The shaft hole 22 that rotating shaft 21 matches, rotating shaft 21 may pass through shaft hole 22 and be fixed on ring body 1, to connect mask 2 and ring Shape body 1, mask 2 21 can be rotated around the shaft.

Above-mentioned mask 2 can be provided with the first locating part, and ring body 1 can be provided with the second locating part, and above-mentioned first is spacing Part, the second locating part can cooperate, and then limit the slewing area of mask 2.

In fact, because the helmet provided by the present invention is that, for air purifying respirator system, mask 2 21 is rotated around the shaft When, only there need to be two working positions.One is that, using position, state specially shown in Fig. 1, mask 2 is big with human body face Cause is parallel, and the breathing area of pure air can be received to cause to be formed between mask 2 and human body face；Secondly to raise position, face Cover 2 is in larger angle with human body face, and the helmet is worn or removed in order to user.

Figure 13-14 are refer to, Figure 13 is the structural representation of the first locating part, and Figure 14 is the structural representation of the second locating part Figure.

As shown in Figure 13 and Figure 14, the first locating part can include three spacing gussets 23, and three spacing gussets 23 can be in Sector is spaced apart in the periphery of shaft hole 22, can the spacing gap 232 of self-assembling formation two between three spacing gussets 23；Above-mentioned second Locating part can include the postive stop baffle 132 of spacing steel ball 131 and two.Using being set as above, when mask 2 is rotated, by adjustment Spacing steel ball 131 is stranded in different spacing gaps 232, you can cutting between realizing mask 2 in above-mentioned use position and raising position Change.

When mask 2 is in using position or raises, in three spacing gussets 23, the two spacing gussets 23 positioned at two ends can be by Corresponding postive stop baffle 132 is stopped that the slewing area of mask 2 is excessive, cross above-mentioned use position or raise position to avoid；Meanwhile, Also can ensure during use that mask 2 stably using position or can raise position in corresponding.

When mask 2 is switched in above-mentioned use position and between raising position, in three spacing gussets 23, positioned at the spacing of centre Gusset 23 (spacing gusset in hereinafter referred to as) needs to be crossed from the surface of spacing steel ball 131.Now, because mask 2 itself has Have certain elasticity, the position that mask 2 is provided with spacing gusset in this can outwards heave, until in spacing gusset fully pass over it is spacing Steel ball 131.

It should be appreciated that the center in two spacing gaps 232 is substantially mask 2 with the angle of the line of centres of shaft hole 22 making The angle of required rotation when being switched between position with position and raising, if the angle is larger, in spacing gusset length it is then more long；At the uniform velocity During rotation, in spacing gusset needed when spacing steel ball 131 is crossed expend longer time, i.e. mask 2 be provided with limit rib in this The position of plate can keep heaving state within considerable time, and mask 2 has larger damage risk.

For the technical problem, can will be above-mentioned in spacing gusset be divided into some small limit ribs 231, each limit rib 231 The bearing of trend of spacing gusset is intervally arranged in, to cause that between two adjacent limit ribs 231 transition gap can be formed 231a.In this way, in spacing gusset during spacing steel ball 131 is crossed, spacing steel ball 131 can be in each transition gap 231a Transition is carried out, limit rib in this is provided with the mask 2 for avoiding the long-time of spacing gusset with of spacing steel ball 131 from offseting, to cause The position of plate keeps heaving state and causing the damage of mask 2 for a long time.

Please continue to refer to Figure 13, the limit rib 231 can be two pieces, and be respectively arranged on spacing gusset bearing of trend in this Both ends, to obtain the transition gap 231a of maximum, so as to avoid the length of the spacing gusset with of spacing steel ball 131 to a greater degree Phase offsets.And using being set as above, mask 2 that is, using position, raises position and transition position equivalent to three working positions；Face to face Cover 2 in transition position when, also can by adjust two limit ribs 231 length, with cause transition gap 231a just with spacing steel Pearl 131 is adapted, so that mask 2 can stably in transition position.It is appreciated that when mask 2 is in transition position, mask 2 The state of raising actually is also in, the angle that simply mask 2 is rotated up is smaller.

Further, the both ends of the surface that each limit rib 231 extends along direction (refer to each limit rib 231 in reflection accompanying drawing 13 Left and right end face) buffering suface A can be provided with, and the buffering suface A and mounting surface B of each limit rib 231 is set in obtuse angle, i.e., this delays Impulse face A is the inclined-plane with certain slope.In this way, in the rotation process of mask 2, the buffering suface A of each limit rib 231 first with limit Position steel ball 131 be in contact, be more convenient for each limit rib 231 from the surface of the spacing steel ball 131 across.It should be appreciated that work as being not provided with During above-mentioned each limit rib 231, the both ends of the surface for being the spacing gusset bearing of trend in foregoing set above-mentioned buffering suface A.

Refer to Figure 15-1a to Figure 15-3b, Figure 15-1a is that mask is in the first locating part, the second locating part during using position The structural representation being engaged, Figure 15-1b are the principle that mask is in that the first locating part, the second locating part are engaged during using position Scheme, the structural representation that Figure 15-2a are engaged for the first locating part, the second locating part when mask is in transition position, Figure 15-2b are The schematic diagram that the first locating part, the second locating part are engaged when mask is in transition position, Figure 15-3a are that mask is in when raising The structural representation that first locating part, the second locating part are engaged, Figure 15-3b be mask be in first locating part when raising, The schematic diagram that second locating part is engaged.

For ease of description, foregoing each spacing gusset 23, limit rib 231 and postive stop baffle 132 can be renamed, With Figure 15-1a as visual angle, superposed spacing gusset 23 is referred to as upper limit gusset in three spacing gussets 23, positioned at bottom Spacing gusset 23 be referred to as lower limit gusset, positioned at middle part spacing gusset 23 be referred to as in spacing gusset；And limit rib in this Plate is made up of two limit ribs 231, also superposed limit rib 231 further can be referred to as into upper limit muscle, and is located at down The limit rib 231 in portion is referred to as lower limit muscle；On the spacing gap 232 formed between upper limit gusset and upper limit muscle is referred to as Spacing gap, the spacing gap 232 formed between lower limit gusset and lower limit muscle is referred to as lower limit gap；It is superposed Postive stop baffle 132 is referred to as upper limit baffle plate, and the postive stop baffle 132 positioned at bottom is referred to as lower limit baffle plate.

It is above-mentioned " on ", D score etc. represent that orientation or the description of position relationship are all based on the scope in Figure 15-1a or position Relation, and because the slewing area of mask 2 is limited, when mask 2 turns to other working positions, orientation, the position of above-mentioned each part Putting relation does not have larger change, so, above-mentioned restriction does not result in described herein unclear.

As shown in Figure 15-1a and Figure 15-1b, mask 2 is in during using position, and spacing steel ball 131 is in upper limit gap, on Spacing gusset and upper limit muscle can stop to the spacing steel ball 131, when being acted on without external force, it is ensured that the spacing steel ball 131 are steadily placed in upper limit gap, so that ensureing that mask 2 can stably be in uses position；And order about face when there is external force When cover 2 is rotated counterclockwise, upper limit baffle plate can stop to upper limit gusset, to avoid mask 2 from rotating counterclockwise more Cross and use position；And when there is external force and order about mask 2 and rotated clockwise, i.e., when raising mask 2 upwards, upper limit muscle can be by Step crosses spacing steel ball 131, to cause that mask 2 switches to transition position.

As shown in Figure 15-2a and Figure 15-2b, when mask 2 is in transition position, spacing steel ball 131 is in the institute of two limit rib 231 In the transition gap 231a of formation, when being acted on without external force, two limit ribs can be formed to the spacing steel ball 131 and stopped, to cause face Cover 2 is stably in transition position.Now, upper limit gusset, lower limit gusset not with upper limit baffle plate or lower limit baffle plate phase Against, so, no matter clockwise, still rotating counterclockwise mask 2, mask 2 is rotatable, with to using position or raising position and cut Change.Specifically, if mask 2 continues to rotate clockwise, lower limit muscle can progressively across spacing steel ball 131, with cause mask 2 to Raise position switching.

As shown in Figure 15-3a and Figure 15-3b, mask 2 is in when raising, and spacing steel ball 131 is in lower limit gap, Lower limit muscle, lower limit gusset can stop to the spacing steel ball 131, when being acted on without external force, it is ensured that the spacing steel ball 131 It is steadily placed in lower limit gap, so that ensureing that mask 2 can stably be in raises position；And order about mask 2 when there is external force When continuing to rotate clockwise, lower limit baffle plate can stop to lower limit gusset, to avoid mask 2 up over raising position； And when there is external force and order about mask 2 and carry out turning anticlockwise, lower limit muscle can progressively cross spacing steel ball 131, so that cause should Mask 2 switches to transition position.

It should be appreciated that the first locating part, the second locating part with said structure can also change its installation site, you can The first above-mentioned locating part can be located at ring body 1, and the second above-mentioned locating part is located at mask 2, can also realized State technique effect.

For above-mentioned each scheme, the concrete structure of mask 2 can also be conducted further description.

As shown in figure 1, the helmet provided by the present invention can also include the packing cloth 24 coordinated with human body lower jaw, packing cloth 24 Outer end can be fixed on mask 2, the inner can be provided with bungee, so that packing cloth 24 can be close to the lower jaw of human body, mask 2nd, packing cloth 24 can form breathing area with human body face, and then cause that the pure air for being passed through ring body 1 can more great Cheng Used by degree ground supply human body mouthful, the breathing of nose.With Fig. 1 as visual angle, the outer end of packing cloth 24 refers to that packing cloth 24 connects with mask 2 One end of conjunction, inner then one end that to refer to packing cloth 24 fit with human body face.

Specifically, the outer end of packing cloth 24 can be provided with some holes, and some hanging columns 271 can be then provided with mask 2, enter And packing cloth 24 is fixed on mask 2 by the way of mounting.Using the connected mode of mounting, the company of packing cloth 24 and mask 2 The place of connecing there may be all Multiple levels, be escaped in order to human body respiration is waste gas produced, and then cause that above-mentioned breathing area can be all the time Keep certain pressure.

The mounting structure of hanging column 271 will be further described through below, specifically refer to Figure 16-19, Figure 16 is face The structural representation of cover, Figure 17 is mask, edge band and the attachment structure schematic diagram for pressing bar, and Figure 18 is mask and edge band The partial enlarged drawing of attachment structure, Figure 19 be provided with edge band, press bar mask structural representation.

As illustrated in figs. 16-19, the bottom margin of mask 2 can be provided with edge band 27, and edge band 27 can be the materials such as rubber Prepared by material, protection is formed with the bottom to mask 2, meanwhile, when can also avoid operation mask 2 from rotating, the bottom margin pair of mask 2 The scuffing of user's finger.

Specifically, the bottom margin of mask 2 can be interval with some spacing holes 26, and edge band 27 can be that section is U The plasticity adhesive tape of shape, and the internal face of the two side of edge band 27 is provided with some spacing preiections 272, each spacing preiection 272 and limit Position hole 26 corresponds and sets.In this way, when edge band 27 is plugged in into the bottom of mask 2 along its U-shaped opening, each spacing preiection 272 can be connected in corresponding spacing hole 26, and edge band 27 is fixedly installed in into mask 2.

Edge band 27 can be provided with some hanging columns 271 towards the one side of human body face, and packing cloth 24 is mounted on into mask 2 Bottom margin, and hanging column 271 away from edge band 27 one end can have large scale portion, to avoid being mounted on the close of mask 2 Envelope cloth 24 comes off.

Further, it is also provided with pressing bar 28, presses bar 28 and extend along direction and be provided with some hanging holes 281, it is each to hang Hole 281 corresponds with hanging column 271 and sets, and the size of each hanging hole 281 can be slightly less than above-mentioned large scale portion.In this way, when tight When press strip 28 presses on each hanging column 271 by its hanging hole 281, pressing bar 28 can firmly be located at the edge band 27, and more great Cheng Avoid packing cloth 24 from being come off from mask 2 degree.

It should be noted that comprising above-mentioned edge band 27, pressing connection between the mask 2 of bar 28 and packing cloth 24 Structure is only a kind of preferred scheme of the embodiment of the present invention, can not be used as the limit of the practical range to the helmet provided by the present invention It is fixed.During specific implementation, can also be using other attachment structures, such as VELCRO, gluing knot between mask 2 and packing cloth 24.

As shown in figures 17 and 19, the top edge of mask 2 is also provided with blend stop 25 towards the side of human body face, accordingly Ground, anterior the 13 of ring body 1 can be provided with convex eaves 133 (referring to Figure 14).Using this structure, used when mask 2 is turned to During position, above-mentioned convex eaves 133 can be formed to blend stop 25 and stop spacing, and position is used to avoid mask 2 from rotating larger scope and cross； Meanwhile, above-mentioned blend stop 25, convex eaves 133 setting can also in using position when gap between mask 2 and ring body 1 play Certain plugging action, to avoid pure air from being lost in from gap therebetween too much, so that external delivery pipe 5 is defeated The pure air for sending can more for wearer's breathing is used.

Embodiment 2

Figure 20-24 are refer to, Figure 20 is the structural representation of purifier, and Figure 21 is the explosive view of Figure 20, and Figure 22 is card The structural representation of fitting, Figure 23 is the structural representation of the second adapter, and Figure 24 is breathed for purification of air provided by the present invention The use state figure of system.

The present invention also provides a kind of air purifying respirator system, including the helmet and purifier 6, and the two passes through appendix 5 It is connected, the helmet that the helmet is provided by each scheme in embodiment 1.

Because the helmet in embodiment 1 has possessed technique effect as above, then, possess the purification of air breathing of the helmet System will not be described here also when possessing similar technique effect.

As illustrated in figures 19 and 20, the purifier 6 of air purifying respirator system provided by the present invention can include housing 61 and the filter assemblies 62 inside housing 61, battery component 63, control assembly 64 and fan assembly 65.The filter assemblies 62 Filter screen fixture 621 and composite screen 622 can be included, the composite screen 622 can include the first effect filter screen, the work that stack gradually Property carbon filtration net and HEPA filter screens (High-Efficiency Particulate Air, the i.e. sub- filter screen of high efficiency air atom), with Enhancing filter effect.

The housing 61 can include upper shell 611, middle housing 612 and lower house 613, wherein, upper shell 611 can be provided with Some air inlet 611a.Incorporated by reference to Figure 24, purifier provided by the present invention 6, it can be mounted on by buckle 66 when in use On special or common waistband 7, now, upper shell 611 towards outside, to avoid rainwater during rainy weather from passing through air inlet 611a enters inside housing 61, and each air inlet 611a may be configured as outer small interior big structure, so as to rain can be avoided largely Water enters from air inlet 611a.

Power key 613a, gear indicator lamp 613b, bluetooth key 613c and battery capacity indication lamp 613d can be set on housing 61, Above-mentioned each part is connected with battery component 63, control assembly 64, with the use of the Collaborative Control purifier 6.And the purification Device 6 is also provided with vibrating motor 613f, when above-mentioned power key 613a, bluetooth key 613c are pressed or occur electricity it is too low During etc. emergency case, vibrating motor 613f can produce vibration, to coordinate corresponding battery capacity indication lamp 613d, bluetooth key 613c etc. User is reminded.

Shackle member 67 is provided with the air outlet 613e of purifier 6, with the phase of the second adapter 51 with external appendix 5 Even.Figure 22 and Figure 23 is for details, reference can be made to, shackle member 67 is tubular construction, and its perisporium is provided with the blocked hole 671 of L-shaped, the blocked hole 671 side opening is axially extended, bottom outlet circumferentially；The periphery wall of the second adapter 51 can then be provided with screens projection 511, tool When body is used, the screens projection 511 of the second adapter 511 can be firstly inserted into the side opening of blocked hole 671 and stretch into side opening bottom, It is spacing to complete clamping and then the bottom outlet along blocked hole 671 is rotated.

The above is only the preferred embodiment of the present invention, it is noted that come for those skilled in the art Say, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be regarded as Protection scope of the present invention.

Claims (14)

1. a kind of helmet of air purifying respirator system, it is characterised in that including the ring body (1) being adapted with human body head With the mask (2) located at the ring body (1), there is annular cavity, the ring body (1) inside the ring body (1) It is additionally provided with air inlet (11) and gas outlet；

The air inlet (11) connects for being input into pure air, the gas outlet with the mask (2), so that pure air is logical Cross the annular cavity into breathing area of the mask (2) and human body face between.

2. the helmet of air purifying respirator system according to claim 1, it is characterised in that also including located at the annular The supporting part (3) of body (1) internal face, the end of the supporting part (3) is connected with slack adjuster (4)；

The ring body (1) includes the pars contractilis (12) for adjusting the ring body (1) size, by the elastic tune Regulating device (4) can be adjusted in synchronism the supporting part (3), the size of the ring body (1).

3. the helmet of air purifying respirator system according to claim 2, it is characterised in that the pars contractilis (12) includes Outer tube (121), the inner sleeve (122) for socket-connecting, the inner sleeve (122) can be slided in the outer tube (121)；

The outer tube (121) is provided with the first limited block (121a), and the outer wall of the inner sleeve (122) is provided with the second limited block (122a), first limited block (121a), second limited block (122a) can offset, to avoid the inner sleeve (122) outer tube (121) is departed from.

4. the helmet of air purifying respirator system according to claim 2, it is characterised in that the pars contractilis (12) includes Arc support (124a) is provided with bellows (124), the bellows (124).

5. the helmet of air purifying respirator system according to claim 2, it is characterised in that the slack adjuster (4) including handwheel (41), gear (42), ratchet (43) and lockwheel (44), the lockwheel (44) is fixed on the supporting part (3), The handwheel (41), ratchet (42), gear (43) can synchronous axial system, the end of the supporting part (3) is provided with and the gear (42) engaging tooth (32) being meshed；

When the handwheel (41) remains static, the ratchet (43) can be engaged with the lockwheel (44), to lock State supporting part (3)；

When the handwheel (41) is in rotary state, the handwheel (41) can be with the ratchet (43), the lockwheel (44) phase Coordinate, to unlock the supporting part (3), and drive the supporting part (3) to move by the gear (42), to adjust the support The size of band (3).

6. the helmet of air purifying respirator system according to claim 5, it is characterised in that the ratchet (43) is including spine Wheel body (431), the periphery of the ratchet body (431) is provided with some projections (432) of radially evagination, each projection (432) it is equipped with to ratchet, two ratchets (433) for including being circumferentially extended along the ratchet body (431) to ratchet, and two The circumferentially extending of the ratchet (433) is in opposite direction；

The lockwheel (44) is provided with inner circular tooth (441), and each ratchet (433) can abut against with the inner circular tooth (441), To limit the rotation of the ratchet (43)；

The handwheel (41) is provided with some to rib towards the one side of the ratchet (43), it is described to rib with described to ratchet one One is correspondingly arranged, and described to include two ribs (411) to rib, two ribs (411) to rib are respectively with described to ratchet The outer face of two ratchets (433) mutually recline；

When the handwheel is in rotary state, direction and the handwheel (41) rotation direction identical ratchet (433) are circumferentially extended By the rib (411) pushing and pressing for mutually reclining therewith, and depart from the inner circular tooth (441), another described muscle to rib Bar (411) offsets with the projection (432), to promote the ratchet (43) with the handwheel (41) synchronous axial system.

7. the helmet of the air purifying respirator system according to any one of claim 1-6, it is characterised in that the air inlet Mouthful (11) are provided with snap-fit arrangements and the first adapter (111), and the bottom of first adapter (111) is defeated with external Tracheae (5) is connected, and the upper end of first adapter (111) can be connected in the snap-fit arrangements.

8. the helmet of air purifying respirator system according to claim 7, it is characterised in that the snap-fit arrangements bag Shell fragment (112) is included, the internal face of the shell fragment (112) is provided with some blocks (112a)；

The upper end of first adapter (111) has the circumferentially flange (111a) of evagination and circumferentially the annular contracting of indent Mouth (111b), the annular necking (111b) is located at the lower section of the flange (111a)；

When using, the flange (111a) of first adapter (111) can push against the block (112a), so that the shell fragment (112) outwards strut；When the flange (111a) is inserted the air inlet (11) and crosses the shell fragment (112), the shell fragment (112) to contract, each block (112a) is connected in the annular necking (111b).

9. the helmet of air purifying respirator system according to claim 8, it is characterised in that the ring body (1) is also Control button (141) is provided with, the control button (141) is connected with unlock piece (142)；

When the control button (141) is in down state, the unlock piece (142) can push against the shell fragment (112), make institute State shell fragment (112) outwards to strut, first adapter (111) can be separated with the air inlet (11).

10. the helmet of the air purifying respirator system according to any one of claim 1-6, it is characterised in that also include Rotating shaft (21), the two ends of the mask (2) are provided with the shaft hole (22) matched with the rotating shaft (21), and the rotating shaft (21) is worn Cross the shaft hole (22) and be fixed on the ring body (1), the mask (2) can rotate around the rotating shaft (21)；

The mask (2) is provided with the first locating part, and the ring body (1) is provided with the second locating part, first locating part, institute Stating the second locating part can cooperate, to limit the slewing area of the mask (2).

The helmet of 11. air purifying respirator systems according to claim 10, it is characterised in that the first locating part bag Three spacing gussets (23) are included, spacing gusset (23) is spaced apart in the periphery of the shaft hole (21) in sector described in three, and Spacing gusset (23) forms two spacing gaps (232) described in three；Second locating part is spacing including spacing steel ball (131) and two Baffle plate (132)；

When the mask (2) is in rotary state, different described spacing are stranded in by adjusting the spacing steel ball (131) Gap (232), may be such that the mask (2) switches using position and between raising position；

In spacing gusset (23) described in three, positioned at two ends two spacing gussets (23) can described in two postive stop baffle (132) institute Stop, avoiding that the mask (2) slewing area is excessive, cross the corresponding use position or described raise position.

The helmet of 12. air purifying respirator systems according to claim 11, it is characterised in that spacing gusset described in three (23) in, some limit ribs (231) are included positioned at middle spacing gusset (23), each limit rib (231) is along the limit rib The bearing of trend of plate (23) is intervally arranged, so as to form transition gap (231a) between adjacent two limit ribs (231).

The helmet of 13. air purifying respirator systems according to claim 10, it is characterised in that also including with human body lower jaw The mask (2) is fixed in the packing cloth (24) of cooperation, the outer end of the packing cloth (24), and the inner is provided with bungee, so that institute State packing cloth (24) and be close to the lower jaw of human body, the mask (2), the packing cloth (24) and human body face form the respiratory region Domain.

A kind of 14. air purifying respirator systems, including the helmet and purifier, the two is connected by appendix (5), and its feature exists In the helmet is the helmet of the air purifying respirator system any one of claim 1-13.