CN203244702U - Dust-proofing breather capable of filtering and driven by electric-blowing and host of same - Google Patents
Dust-proofing breather capable of filtering and driven by electric-blowing and host of same Download PDFInfo
- Publication number
- CN203244702U CN203244702U CN 201320268574 CN201320268574U CN203244702U CN 203244702 U CN203244702 U CN 203244702U CN 201320268574 CN201320268574 CN 201320268574 CN 201320268574 U CN201320268574 U CN 201320268574U CN 203244702 U CN203244702 U CN 203244702U
- Authority
- CN
- China
- Prior art keywords
- cavity
- main frame
- filtering type
- air filtering
- supplied air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Helmets And Other Head Coverings (AREA)
Abstract
The utility model discloses a dust-proofing breather capable of filtering and driven by electric-blowing and a host of the same. The host (9) comprises a shell (91), a fan (92) and a driving device (93), wherein the driving device (93) comprises a driving unit driving the fan and a power supplying unit providing power to the driving unit; the shell (91) comprises a first cavity (91a) accommodating the fan (92) and a second cavity (91b) accommodating the driving device (93); the shell (91) is provided with a wind discharge pipe (94) connected with the first cavity (91a); and a wind outlet of the fan (92) is connected with the wind discharging pipe (94); and the second cavity (91b) is enclosed. The driving fan and the driving device are disposed in the enclosed second cavity, so the structure fundamentally enables the driving fan and the driving device to be isolated from dust environment when in use, thereby prolonging service life of the dust-proofing breather capable of filtering driven by electric-blowing and the host.
Description
Technical field
The utility model relates to protector, particularly, relates to a kind of main frame and the powered supplied air filtering type dust-proof rebreather that comprises this main frame of powered supplied air filtering type dust-proof rebreather.
Background technology
Protective helmet is widely used in the operating personnels such as industrial and mineral, fire-fighting because of its sealing protection effect.During use, usually need to carry the heavy air feed equipments such as oxygen cylinder, thereby increase the weight of operating personnel's burden.Although can use portable fan to the protective helmet air feed, the electric unit that drives blower fan is exposed under the dust atmosphere, is very easy to damage.Therefore, prior art is badly in need of having the feeder than the long life.
The utility model content
The purpose of this utility model provides a kind of main frame of powered supplied air filtering type dust-proof rebreather, and this main frame can and have long service life protective helmet inside air feed.
To achieve these goals, the utility model provides a kind of main frame of powered supplied air filtering type dust-proof rebreather, wherein, described main frame comprises housing, blower fan and drive unit, described drive unit comprises for the driver element that drives blower fan and is used for to the power supply unit of described driver element power supply, described housing has be used to the first cavity that described blower fan is set with for the second cavity that described drive unit is set, described housing is provided with the discharge pipe that is communicated with described the first cavity, the air outlet of described blower fan is communicated with described discharge pipe, and described the second cavity is enclosed construction.
Preferably, described driver element is brushless electric machine, and the impeller of described blower fan is installed on the output shaft of described brushless electric machine.
Preferably, described driver element comprises switch, described the second cavity has the through hole of the wall that passes described housing, described switch stretches out described housing by described through hole, be provided with the switch hood that covers hermetically described through hole and described switch on the outer wall of described housing, described switch hood is made by elastomeric material.
Preferably, described power supply unit is rechargeable battery, described the second cavity has the installing hole of the wall that passes described housing, the charging connector of described rechargeable battery exposes from described installing hole, the arranged outside of described housing is useful on the seal of the described installing hole of sealing, and described seal is removably mounted on the described housing.
Preferably, described seal is made into integration by flexible sealing material, and described seal comprises the fixed part in the outside of being fixed in described housing and is used for the flexibly closure part of the described installing hole of shutoff.
Preferably, be provided with the filter element of the inlet scoop that covers described blower fan in described the first cavity.
Preferably, described filter element comprises the coarse filtration part and is arranged on thin filtration members between described coarse filtration part and the described inlet scoop.
Preferably, described housing comprises box-like main part and removably is connected in the lid of described main part, described the second cavity is positioned at the bottom of described main part, the roof of described the second cavity, the sidewall of described main part and described lid limit described the first cavity, and described covering is provided with the air inlet that is communicated with described the first cavity.
Preferably, the junction of described main part and described lid is by dismountable sealing ring sealing.
Preferably, be provided with positioning unit on the described housing.
The utility model also provides a kind of powered supplied air filtering type dust-proof rebreather, wherein, described powered supplied air filtering type dust-proof rebreather comprises main frame of the present utility model and protective helmet, described protective helmet comprises the breather line that gas is provided for the inner space to described protective helmet, and described breather line is connected with described discharge pipe.
By technique scheme, the drive unit that drives blower fan is installed in the second cavity of enclosed construction, thereby can basically isolate from the dust atmosphere when using, and therefore has long service life.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and consists of the part of specification, is used from explanation the utility model with the following specific embodiment one, but does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of explanation powered supplied air filtering type dust-proof rebreather of the present utility model;
Fig. 2 is the front view of the main frame in the key diagram 1;
Fig. 3 is the top view of the main part of the main frame in the key diagram 2;
Fig. 4 is the upward view of the main frame in the key diagram 2, wherein at positioning unit portable braces has been installed;
Fig. 5 is the floor map of the coarse filtration part among Fig. 2;
Fig. 6 is the floor map of the thin filtration members among Fig. 2;
Fig. 7 is the schematic diagram of a kind of embodiment of explanation air bleeding valve of the present utility model;
Fig. 8 is the cutaway view along A-A line intercepting among Fig. 7.
Description of reference numerals
1: case 2: air bleeding valve 3: installing rack 4: flexible membrane
5: clamping piece 6: installed part 7: breather line
9: main frame
91: housing 91a: the first cavity 91b: the second cavity 91c: main part
91d: lid 91e: installing hole 91f: air inlet 91g: indicator lamp
92: blower fan 93: drive unit 94: discharge pipe 95: switch hood
96: seal 96a: fixed part 96b: closure part
97: coarse filtration part 98: thin filtration members 99: positioning unit 99a: clamping part
10: tube connector 11: guard shield 12: observation window 12a: diaphragm
13: pore 14: 16: the first ropes of 15: the first bungees of noise reduction bolt snap close
18: the second ropes of 17: the second bungees snap close S: portable braces
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
In the utility model, do not doing in the situation of opposite explanation the upper and lower, left and right of the noun of locality of use shown in " upper and lower, left and right " typically refer to reference to the accompanying drawings; " inside and outside " refers to inside and outside with respect to the profile of each parts itself.
According to an aspect of the present utility model, a kind of main frame of powered supplied air filtering type dust-proof rebreather is provided, wherein, described main frame 9 comprises housing 91, blower fan 92 and drive unit 93, described drive unit 93 comprises for the driver element that drives blower fan and is used for to the power supply unit of described driver element power supply, described housing 91 has be used to the first cavity 91a that described blower fan 92 is set with for the second cavity 91b that described drive unit 93 is set, described housing 91 is provided with the discharge pipe 94 that is communicated with described the first cavity 91a, the air outlet of described blower fan 92 is communicated with described discharge pipe 94, and described the second cavity 91b is enclosed construction.
According on the other hand of the present utility model, a kind of powered supplied air filtering type dust-proof rebreather is provided, wherein, described powered supplied air filtering type dust-proof rebreather comprises described main frame and protective helmet, described protective helmet comprises the breather line 7 that gas is provided for the inner space to described protective helmet, and described breather line 7 is connected with described discharge pipe 94.
In the main frame 9 of the present utility model, drive unit 93 is installed in the second cavity 91b that forms enclosed construction, thereby can basically isolate from the dust atmosphere when using, and therefore has long service life.
In addition, for locating better blower fan 92, can form step at the roof of the second cavity 91b, so that blower fan 92 is positioned in the recess that is limited by step.The first cavity 91a and the second cavity 91b separate substantially by the roof of the second cavity 91b, but leave the hole for connecting fan 92 and drive unit 93 on this roof.
Preferably, the junction of described main part 91c and described lid 91d is by dismountable sealing ring sealing, to guarantee to cover being tightly connected of 91d and main part 91c.
Because protective helmet may be used for the hazardous areas such as mine, scene of fire.Preferably, described driver element can be brushless electric machine, thus the electric spark that has produced when having avoided motor rotation, and greatly reduced the potential threat that electric spark brings hazardous areas such as mine, scenes of fire.During use, the impeller of described blower fan 92 can be installed on the output shaft of described brushless electric machine.
In addition, described driver element comprises switch 93a, described the second cavity 91b can have the through hole of the wall that passes described housing, described switch 93a stretches out described housing 91 by described through hole, be provided with the switch hood 95 that covers hermetically described through hole and described switch 93a on the outer wall of described housing 91, to guarantee the sealing of drive unit 93, avoid causing the issuable spark of electric elements of drive unit inside that the environment such as mine, scene of fire are brought potential threat because switch 93a exposes.During use, can be directly from outside push switch guard shield 95, thus push switch 93a indirectly.Wherein, described switch hood 95 can be made by elastomeric material (for example rubber), in order to press and automatically recovery after pressing.
In the utility model, power supply unit can be various suitable forms, for example can be battery.The potential threat that must open housing 91 and cause thus the second cavity 91b to be exposed to working environment and to cause thus when avoiding changing battery, preferably, described power supply unit is rechargeable battery.For this reason, described the second cavity 91b has the installing hole 91e of the wall that passes described housing 91, and the charging connector of described rechargeable battery exposes from described installing hole 91e, so that connecting charger.In addition, the outside of described housing 91 can be provided be used to the seal 96 that seals described installing hole 91e, keeps sealing to make whole drive unit 93 when not charging.
Wherein, described seal 96 is removably mounted on the described housing 91 in various suitable modes.For example, in embodiment shown in Figure 2, described seal 96 can be made into integration by flexible sealing material (for example rubber), and that described seal 96 comprises is fixing (for example bonding) in the fixed part 96a in the outside of described housing 91 and be used for the flexibly closure part 96b of the described installing hole 91c of shutoff.When not charging, closure part 96b can be blocked among the installing hole 91e with fashion of extrusion, to guarantee sealing; During charging, closure part 96b can be extracted from installing hole 91e.In addition, can be provided for showing the indicator lamp 91g of battery charge condition on the housing 91, when battery electric power is not enough, show and amber light glimmer in the charging process that electric power abundance or charging are extinguished when finishing.
Because this practical powered supplied air filtering type dust-proof rebreather is mainly used in industrial and mineral, fire-fighting operation, thereby external environment condition is comparatively abominable, directly extraneous air can be worked the mischief to wearer's health by the wearer that blower fan 92 offers protective helmet.Therefore; can be provided with the filter element of the inlet scoop that covers described blower fan 92 in described the first cavity 91a; thereby can before being aspirated by blower fan 92, filter extraneous air extraneous air; guaranteeing the quality of the air that blower fan 92 provides, and can protect the associated components of blower fan 92 and main frame 9 to avoid polluting.
Wherein, filter element can adopt various suitable forms, as long as can carry out filtration, purification to the air that is drawn in the blower fan 92.Preferably, described filter element comprises coarse filtration part 97 and is arranged on thin filtration members 98 between described coarse filtration part 97 and the described inlet scoop.In other words, coarse filtration part 97 and thin filtration members 98 are arranged on the inlet scoop of blower fan 92 stackedly.Thus, can be drawn into before the blower fan 92 by air, at first carry out coarse filtration through coarse filtration part 97, to filter out particle larger in the air; Then carefully filter through meticulous filtration members 98, to filter out particle less in the air.According to different working environments, can select suitable coarse filtration part 97 and thin filtration members 98, and when coarse filtration and thin the filtration, filter out the particle of corresponding size.For example, in the industrial and mineral operation, coarse filtration part 97 can be fiber filter cloth, and thin filtration members 98 can be for having the filter core of active carbon.In addition, for ease of arranging, coarse filtration part 97 and thin filtration members 98 can be set to have corresponding size with the cross section of the first cavity 91a, such as Fig. 2, Fig. 5 and shown in Figure 6.
In addition, preferably, can be provided with positioning unit 99 on the described housing 91, in order to carry main frame 9.Positioning unit 99 can be set to various suitable forms, for example can be buckle, in order to be buckled on operating personnel's the clothing.Selectively, as shown in Figure 4, positioning unit 99 can comprise clamping part 99a and pass the portable braces S of described clamping part 99a clamping, thereby can utilize portable braces S that main frame 9 is fixed on arbitrarily suitable position.Wherein, clamping part 99a can be arranged on any suitable position of housing 91, for example is arranged on the bottom surface of housing 91.
Protective helmet of the present utility model can adopt various forms.For example, described protective helmet comprises case 1, is arranged on guard shield 11 and the observation window 12 of the lower front of described case 1, and described guard shield 11 has opening, and described observation window 12 is installed on described opening part.
Preferably, described protective helmet comprises the diaphragm 12a on the outer surface that covers described observation window 12, thereby can utilize diaphragm 12a to protect observation window 12, avoids the wearing and tearing of observation window 12 and the safety problem that causes thus.
During use, the particle in the working environment is direct contact protection film 12a, thereby avoided the wearing and tearing to observation window 12.Wherein, diaphragm 12a is expendable part, and diaphragm 12a can be set by suitable mode, in order to change.Preferably, described diaphragm 12a is arranged on the outer surface of described observation window 12 with bonding method.Thus, when needs are changed diaphragm 12a, only need tear diaphragm 12a off, then new diaphragm 12a be sticked on the observation window 12 and get final product.
In addition, described guard shield 11 has the cover draught animals that the headgear that allows the wearer enters, and can be provided with the first bungee 15 be used to the size of regulating the described cover draught animals in the edge of the described cover draught animals, and described the first bungee 15 is regulated length by the first lock sling 16; And/or, the bottom of described case 1 is provided with shade, can be provided with the second bungee 17 be used to the size of regulating described shade on the described shade, and described the second bungee 17 is regulated length by the second lock sling 18.
Preferably, described protective helmet can comprise for the inner space to described case 1 provides the breather line 7 of gas and the main frame 9 that is used for providing to described breather line 7 gas.Thus, can provide air to the inner space of case 1 by main frame 9, breathe for the wearer.
Wherein, breather line 7 can be independent tubular part, and is arranged separately in the case 1.Selectively, when case 1 was the hard case, breather line 7 also can be to be integrally formed in the hard case.For example, described breather line 7 can be formed in the shell wall of described hard case.
Wherein, can make an end of described breather line 7 be positioned at the lower rear of described case 1, the other end is positioned at the front upper of the inboard of described case 1, directly is provided to wearer's nose areas, the convenient breathing with the gas with breather line 7 outputs.
More preferably, can be provided with exhaust apparatus on the described case 1, thereby carry out exhaust by exhaust apparatus when air pressure that can be in protective helmet is excessive, to weaken the air pressure in the protective helmet, make the wearer feel comfortable.
In addition, when wearing, because the good fluidity of the air of the middle and lower part of protective helmet is in the middle and upper part, thereby preferably described exhaust apparatus is arranged on the middle and upper part of the short transverse of described case 1.
Preferably, described exhaust apparatus can comprise air bleeding valve 2.More preferably, described air bleeding valve 2 can and lay respectively at the middle part along short transverse of the both sides of described case 1 for two.
In the utility model, air bleeding valve 2 can adopt various suitable forms, for example can be the form of opening by manual unlocking or automatic control.In preferred embodiment of the present utility model, as shown in Figure 7 and Figure 8, described case 1 has installing hole, and described air bleeding valve 2 comprises that the middle part of described flexible membrane 4 is installed on described installing rack 3 be used to the flexible membrane 4 of the installing rack 3 that is installed to described installing hole and the described installing hole of covering.Thus, flexible membrane 4 can the pressure in protective helmet reaches setting value (for example hold 55-65 in the protective helmet and rise gas) time to be opened automatically, and the autoshutdown during less than setting value of the pressure in protective helmet.Particularly, the pressure in protective helmet is less than when setting value, and flexible membrane 4 can keep the straight lamellar morphology of its nature, thereby covers described installing hole, namely keeps closed condition.When the pressure in the protective helmet increases to setting value, the air pressure in the protective helmet will force flexible membrane 4 flexural deformations, make it can't cover installing hole fully, thereby realize automatically opening exhaust.
In addition, preferably, as shown in Figure 7 and Figure 8, described air bleeding valve 2 can comprise the clamping piece 5 that is arranged on abreast described flexible membrane 4 outsides, so that the pressure in protective helmet the time guarantees that flexible membrane 4 is in the straight lamellar morphology of nature less than setting value, and the air pressure in protective helmet after exhaust, be reduced to setting value when following so that flexible membrane 4 is returned to rapidly straight lamellar morphology.
Wherein, flexible membrane 4 can adopt various suitable materials to make, the distortion and reply and have suitable rigidity so that the pressure in protective helmet covers installing hole during less than setting value as long as flexible membrane 4 can have flexibility.Similarly, clamping piece 5 also can adopt various suitable materials to make, as long as pressure that can be in protective helmet guarantees that flexible membrane 4 is in the straight lamellar morphology of nature during less than setting value, and the air pressure in protective helmet is reduced to setting value when following after exhaust so that flexible membrane 4 is returned to rapidly straight lamellar morphology gets final product.For example, flexible membrane 4 and clamping piece 5 all can be made of plastics.
In addition, flexible membrane 4 and clamping piece 5 can form various suitable shapes, and preferably, described flexible membrane 4 and clamping piece 5 can form the circle of concentric setting, and the diameter of described clamping piece 5 is less than the diameter of described flexible membrane 4.Thus, clamping piece 5 can apply so that flexible membrane 4 is the thrust of straight lamellar morphology flexible membrane 4 from the middle part of flexible membrane 4.
In addition, preferably, the circle centre position of described flexible membrane 4 and clamping piece 5 can be respectively arranged with through hole, described installing rack 3 have can with the installing hole of described through-hole alignment, described installing rack 3, flexible membrane 4 and clamping piece 5 are for example sold by the installed part 6(that passes described through hole and installing hole) removably fixing.Thus, when the pressure in the protective helmet increases to setting value, air pressure in the protective helmet will force flexible membrane 4 flexural deformations, thereby the periphery of flexible membrane 4 is outwardly-bent, air bleeding valve 2 is opened automatically, and the gas in the protective helmet will be discharged from the space between the periphery of the periphery of flexible membrane 4 and installing hole.When the air pressure in the protective helmet is reduced to setting value when following after exhaust, the thrust of clamping piece 5 will be so that flexible membrane 4 be returned to rapidly straight lamellar morphology, the space between the periphery of elimination flexible membrane 4 and the periphery of installing hole, air bleeding valve 2 autoshutdowns.
Wherein, installing rack 3 can form various suitable structures, as long as flexible membrane 4 can be arranged on the installing hole place.For example, installing rack 3 can be set to Bracket Type shown in Figure 8, this carriage comprises that the bottom of accommodation section can form the latticed of hollow out, so that gas passes through be used to the support portion of the accommodation section that holds flexible membrane 4 and clamping piece 5 and support accommodation section.
In addition, be in the situation of soft case at described case 1, the inboard of described case 1 can be provided with restraint zone, and described breather line 7 can be fixed in described case 1 by described restraint zone.
Wherein, restraint zone can adopt various suitable forms, preferably can be set to regulate the form (for example adopting elastic cord or magic tape) of the clasp size that is formed by restraint zone, in order to be suitable for the fixedly breather line 7 of different tube diameters.
In addition, preferably, described restraint zone can be for a plurality of and along the line of symmetry setting from the rear portion to the front portion of described case 1, in order to obtain stable center of gravity when wearing after breather line 7 is installed.In addition, restraint zone can be arranged on by various suitable modes the inboard of soft case.For example, using in the situation of magic tape as restraint zone, it directly can be made on soft case.
In addition, described protective helmet can comprise that sealing is arranged on the guard shield 11 of the lower front of described soft case 1, and described guard shield 11 is defined for the opening that observation window 12 is installed, and described guard shield 11 and/or described soft case 1 have for the pore 13 of breathing.In the situation that does not have above-mentioned feeder 8 and breather line 7, the wearer can breathe by pore 13.In the situation with above-mentioned feeder 8 and breather line 7, the wearer can suck the gas that feeder 8 and breather line 7 provide, and Exhaled gasesS can be discharged by pore 13.Similarly, when the air pressure in the soft case 1 is excessive, air bleeding valve 2 will open to assist exhaust.
As shown in Figure 1, the pore 13 that is arranged on the guard shield 11 can be arranged on the part that is positioned at observation window 12 belows of guard shield 11, in order to breathe.In addition, be arranged on the middle part that pore 13 on the case 1 can be arranged on case 1, for example two steam vents 13 that are positioned at front and rear can be set respectively in the both sides of case 1 as shown in Figure 1, in order to increase the gas fluidity in the case 1.Selectively, the pore 13 that is arranged on the case 1 can be two groups, and for example can lay respectively at the middle and upper part along short transverse of the both sides of described case 1.Above-mentioned arrangement is preferred form of the present utility model, but is not limited to this.
In addition, preferably, the sidepiece of described guard shield 11 and described case 1 junction can be provided with noise reduction bolt 14.Wherein, the sidepiece of guard shield 11 and case 1 junction are corresponding to the top of wearer's ear, thereby when wearing noise reduction bolt 14 just frame on wearer's ear, so that form the gap between case 1 and wearer's the head, can assist steam vent to carry out exhaust by this gap when larger with the air pressure in the convenient case 1, thereby avoid only by the exhaust apparatus exhaust and at the larger roar of case 1 interior generation.
Wherein, noise reduction bolt 14 can form various suitable forms, if can frame on wearer's ear and form described gap.Preferably, described noise reduction bolt 14 can comprise overcoat and be arranged on the interior sound-absorptive object of described overcoat that described sound-absorptive object is folded to form along the broken lines that the warp with described cloth is 45 degree by the cloth of softness.Thus, can make sound-absorptive object form the form with varied in thickness, thereby cosily frame is on wearer's ear.
In addition, can noise reduction bolt 14 removably be installed by various suitable modes, for example install by the thread gluing mode, thereby can optionally wear as required.
In addition, soft case refers to the case that can fold to a great extent, be out of shape, can be made by air-locked material of various suitable tender textures, for example made by various air-locked fiber cloth, thereby can when being suitable for the operations such as industrial and mineral, fire-fighting, provide comfortable wearing and portability.The shade of guard shield 11 and hard case also can be made by the material identical with soft case, but also can provide safeguard function and comfortable, portable material to make by other.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment in reconcilable situation, can make up by any suitable mode.For fear of unnecessary repetition, the utility model is to the no longer separately explanation of various possible combinations.
In addition, also can carry out any combination between the various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (11)
1. the main frame of a powered supplied air filtering type dust-proof rebreather, it is characterized in that, described main frame (9) comprises housing (91), blower fan (92) and drive unit (93), described drive unit (93) comprises for the driver element that drives blower fan and is used for to the power supply unit of described driver element power supply, described housing (91) has be used to the first cavity (91a) that described blower fan (92) is set with for the second cavity (91b) that described drive unit (93) is set, described housing (91) is provided with the discharge pipe (94) that is communicated with described the first cavity (91a), the air outlet of described blower fan (92) is communicated with described discharge pipe (94), and described the second cavity (91b) is enclosed construction.
2. the main frame of powered supplied air filtering type dust-proof rebreather according to claim 1 is characterized in that, described driver element is brushless electric machine, and the impeller of described blower fan (92) is installed on the output shaft of described brushless electric machine.
3. the main frame of powered supplied air filtering type dust-proof rebreather according to claim 1, it is characterized in that, described driver element comprises switch (93a), described the second cavity (91b) has the through hole of the wall that passes described housing, described switch (93a) stretches out described housing (91) by described through hole, be provided with the switch hood (95) that covers hermetically described through hole and described switch (93a) on the outer wall of described housing (91), described switch hood (95) is made by elastomeric material.
4. the main frame of powered supplied air filtering type dust-proof rebreather according to claim 1, it is characterized in that, described power supply unit is rechargeable battery, described the second cavity (91b) has the installing hole (91e) of the wall that passes described housing (91), the charging connector of described rechargeable battery exposes from described installing hole (91e), the arranged outside of described housing (91) is useful on the seal (96) of the described installing hole of sealing (91e), and described seal (96) is removably mounted on the described housing (91).
5. the main frame of powered supplied air filtering type dust-proof rebreather according to claim 4, it is characterized in that, described seal (96) is made into integration by flexible sealing material, and described seal (96) comprises the fixed part (96a) in the outside of being fixed in described housing (91) and is used for the flexibly closure part (96b) of the described installing hole of shutoff (91c).
6. the main frame of powered supplied air filtering type dust-proof rebreather according to claim 1 is characterized in that, is provided with the filter element of the inlet scoop that covers described blower fan (92) in described the first cavity (91a).
7. the main frame of powered supplied air filtering type dust-proof rebreather according to claim 6 is characterized in that, described filter element comprises coarse filtration part (97) and is arranged on thin filtration members (98) between described coarse filtration part (97) and the described inlet scoop.
8. the main frame of the described powered supplied air filtering type of any one dust-proof rebreather according to claim 1-7, it is characterized in that, described housing comprises box-like main part (91c) and removably is connected in the lid (91d) of described main part (91c), described the second cavity (91b) is positioned at the bottom of described main part (91c), the roof of described the second cavity (91b), the sidewall of described main part (91c) and described lid (91d) limit described the first cavity (91a), are provided with the air inlet (91f) that is communicated with described the first cavity (91a) on the described lid (91d).
9. the main frame of powered supplied air filtering type dust-proof rebreather according to claim 8 is characterized in that, the junction of described main part (91c) and described lid (91d) is by dismountable sealing ring sealing.
10. the main frame of powered supplied air filtering type dust-proof rebreather according to claim 1 is characterized in that, is provided with positioning unit (99) on the described housing (91).
11. powered supplied air filtering type dust-proof rebreather, it is characterized in that, described powered supplied air filtering type dust-proof rebreather comprises according to claim 1 the described main frame of any one and protective helmet in-10, described protective helmet comprises the breather line (7) that gas is provided for the inner space to described protective helmet, and described breather line (7) is connected with described discharge pipe (94).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320268574 CN203244702U (en) | 2013-05-16 | 2013-05-16 | Dust-proofing breather capable of filtering and driven by electric-blowing and host of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320268574 CN203244702U (en) | 2013-05-16 | 2013-05-16 | Dust-proofing breather capable of filtering and driven by electric-blowing and host of same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203244702U true CN203244702U (en) | 2013-10-23 |
Family
ID=49371170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320268574 Expired - Fee Related CN203244702U (en) | 2013-05-16 | 2013-05-16 | Dust-proofing breather capable of filtering and driven by electric-blowing and host of same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203244702U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106880913A (en) * | 2017-04-05 | 2017-06-23 | 李定兵 | Powered supplied air breathing equipment |
| CN107583214A (en) * | 2016-07-06 | 2018-01-16 | 沈阳韩秋平科技有限公司 | A kind of dust mask |
| CN108081979A (en) * | 2016-11-22 | 2018-05-29 | 福特全球技术公司 | Charging port assembly and method of moulding |
| CN108367181A (en) * | 2015-10-15 | 2018-08-03 | 空气净化技术有限公司 | Respirator |
| CN111228670A (en) * | 2020-03-16 | 2020-06-05 | 福建霖美户外运动有限公司 | Positive pressure protection headgear |
| CN111486524A (en) * | 2020-05-08 | 2020-08-04 | 重庆工业职业技术学院 | Indoor fresh air system helpful for preventing and controlling new coronary pneumonia |
-
2013
- 2013-05-16 CN CN 201320268574 patent/CN203244702U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108367181A (en) * | 2015-10-15 | 2018-08-03 | 空气净化技术有限公司 | Respirator |
| CN107583214A (en) * | 2016-07-06 | 2018-01-16 | 沈阳韩秋平科技有限公司 | A kind of dust mask |
| CN108081979A (en) * | 2016-11-22 | 2018-05-29 | 福特全球技术公司 | Charging port assembly and method of moulding |
| CN106880913A (en) * | 2017-04-05 | 2017-06-23 | 李定兵 | Powered supplied air breathing equipment |
| CN111228670A (en) * | 2020-03-16 | 2020-06-05 | 福建霖美户外运动有限公司 | Positive pressure protection headgear |
| CN111486524A (en) * | 2020-05-08 | 2020-08-04 | 重庆工业职业技术学院 | Indoor fresh air system helpful for preventing and controlling new coronary pneumonia |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203244702U (en) | Dust-proofing breather capable of filtering and driven by electric-blowing and host of same | |
| US4590951A (en) | Breathing apparatus | |
| US10888721B2 (en) | Breath responsive powered air purifying respirator | |
| US7534005B1 (en) | Welding helmet | |
| US7178932B1 (en) | Welding helmet | |
| US3963021A (en) | Respirators | |
| US5283914A (en) | Protective helmets | |
| JP2006102324A (en) | Protective tool for breathing with electric fan | |
| EP0338714A2 (en) | Safety visors | |
| GB2032284A (en) | Improvements in and relating to breathing apparatus | |
| CA2706376A1 (en) | Modular powered air purifying respirator | |
| CN108883320A (en) | portable oxygen mask | |
| CN110338500A (en) | A kind of power air-supply Dust proof helmet | |
| US3238535A (en) | Welding helmet | |
| CN203435771U (en) | Protective helmet | |
| CN208682556U (en) | A kind of special vehicle integrated protection system | |
| CN106512248A (en) | Face mask with draught fan | |
| CN206414643U (en) | A kind of mouth mask with blower fan | |
| EP2116279A1 (en) | Apparatus for recycling moisture exhaled from worker within dry room to the worker | |
| CN210747484U (en) | Underground working helmet for miner | |
| SE501653C2 (en) | Protective helmet with visor - has visor retractable within helmet, fan to give filtered air flow through duct and ear defenders mounted within shell | |
| WO2007112482A1 (en) | Passive apparatus and method for filtering noxious gases | |
| CN205515176U (en) | Stop sick high -efficient multi -functional protective face mask of pneumoconiosis | |
| CN206995629U (en) | Portable type air cleaning unit | |
| CN201799027U (en) | Dust-filtering air-supplying type dust mask |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20180516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |