CN108472519A - Automatic opening inlet valve for emergency escape breathing apparatus - Google Patents
Automatic opening inlet valve for emergency escape breathing apparatus Download PDFInfo
- Publication number
- CN108472519A CN108472519A CN201580085712.0A CN201580085712A CN108472519A CN 108472519 A CN108472519 A CN 108472519A CN 201580085712 A CN201580085712 A CN 201580085712A CN 108472519 A CN108472519 A CN 108472519A
- Authority
- CN
- China
- Prior art keywords
- valve seat
- cover
- air
- valve
- hose
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/02—Respiratory apparatus with compressed oxygen or air
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/10—Valves
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/02—Valves
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
- A62B17/04—Hoods
Abstract
A kind of and emergency escape breathing apparatus is provided（EEBD）The inlet valve being used together.EEBD can be used in case of emergency, to protect a user from the influence of the smog in air, chemical substance, particle or other harmful elements, and provide respirable air to user.EEBD（100）It may include air collector（104）, cover（102）With by air from cylinder（104）Cover is provided（102）Hose（106）.EEBD（100）It may also include and be attached to hose（106）Inlet valve（108）.Work as cylinder（104）To cover（102）When air is provided, cylinder is come from（104）The pressure of air can keep inlet valve（108）It closes.Work as cylinder（104）When exhausting air, inlet valve（108）It can open, user is allowed to wear cover（102）While continue to breathe.In some embodiments, inlet valve（200）Can also have filter（210）, the filter is operable to be filtered through inlet valve（200）Into cover（102）Surrounding air.
Description
Cross reference to related applications
It is not applicable.
Statement about the research or development that federal government subsidizes
It is not applicable.
The reference of microfiche appendix
It is not applicable.
Background technology
Urgent respirator can be worn during emergency, to protect a user from the shadow of the harmful substance in air
It rings.Urgent respirator can be worn in working environment or living environment.Some urgent respirators, which can have, is fleeing from hazardous environment
When for user breathing breathable air cylinder.
Invention content
It may include that the embodiment for the inlet valve being used together with cover, the inlet valve include in terms of the disclosure：Valve seat, wherein
Valve seat is assemblied in the opening of cover；Lid, operable to be attached to valve seat, middle cover is located in the inside of cover, and wherein cover
A part is fixed between valve seat and lid；Hose, operable to provide breathable air to the inside of external member, wherein hose is attached
To valve seat；Flexible membrane, it is operable to be moved in response to the pressure in inlet valve, wherein when air flows through hose, flexible membrane
It closes, wherein when not having air to flow through hose, flexible membrane will be responsive to the sucking of user and open, and wherein valve seat includes opening
Mouthful, surrounding air is by valve to allow when flexible membrane is opened, and its middle cover includes the slot for the inside for allowing air into cover.
In some embodiments, the center that hose passes through valve seat.In some embodiments, hose and valve seat be heated to by
Hose is attached to valve seat.In some embodiments, inlet valve may also include filter, and the filter is operable to cover valve seat
Opening, and it is filtered through the extraneous air inside inlet valve to cover.In some embodiments, filter passes through the pawl on valve seat
It is maintained in valve seat.In some embodiments, a part for flexible membrane is attached to the slot in valve seat.In some embodiments, it covers
Including screw thread, wherein valve seat includes screw thread, and its middle cover is threadedly coupled on valve seat.In some embodiments, inlet valve, cover
It is emergency escape breathing apparatus with hose（EEBD）A part.In some embodiments, when air is flowed into from hose in valve,
A part for flexible membrane against valve seat is sealed, to prevent surrounding air from entering valve via the opening in valve seat.
The additional aspect of the disclosure may include the embodiment of EEBD, which includes accommodating limited amount breathable air
Cylinder；Cover, it is operable to be sealed with the neck for assembling on the user's head and surrounding user；Hose, it is operable to incite somebody to action
Breathable air is provided from cylinder to the inside of cover；Inlet valve is attached to hose, and inlet valve includes valve seat, and wherein valve seat is assemblied in
In the opening of cover；Lid, operable to be attached to valve seat, middle cover is located in the inside of cover, and the part wherein covered is fixed
Between valve seat and lid；Flexible membrane, it is operable to be bent in response to the pressure in inlet valve, wherein when air is flowed into from hose
When in valve, a part for flexible membrane against valve seat is sealed, to prevent surrounding air from entering cover, wherein when do not have air from
When cylinder flows through hose, flexible membrane will be responsive to the sucking of user and is bent far from valve seat, allow surrounding air via in valve seat
Opening enter cover, and its middle cover include allow air enter via inlet valve cover inside slot.
In some embodiments, the center that hose passes through valve seat.In some embodiments, inlet valve further includes filter,
The filter is operable to cover the opening of valve seat, and is filtered through the extraneous air inside inlet valve to cover.In some realities
It applies in example, inlet valve includes circular shape.In some embodiments, lid includes screw thread, and wherein valve seat includes screw thread, and wherein
Lid is threadedly coupled on valve seat.In some embodiments, it covers as cheese, the air flowed from hose is directed to flexible membrane
On, to which flexible membrane is sealed against valve seat.
The other aspects of the disclosure may include the embodiment of the method for assembling the inlet valve being used together with EEBD, should
Method includes：It provides operable breathable air to be supplied to the hose of the cover of EEBD from cylinder；Attach hoses to inlet valve
Valve seat；Flexible membrane is attached to valve seat, wherein valve seat includes opening, wherein flexible membrane sealed opening, and wherein flexible membrane
It is operable in response to the negative pressure in cover and far from open loop；And it is by being threadedly coupled on valve seat by that will cover that valve seat is attached
It is connected to cover, wherein the part covered is fixed between valve seat and lid.
In some embodiments, valve seat is attached hoses to may include hose being hot-pressed onto valve seat.In some embodiments,
Flexible membrane is attached to valve seat to may include in the slot that a part for flexible membrane is fixed on valve seat.In some embodiments, should
Method may also include offer filter, and the filter is operable to be assemblied in valve seat, and is filtered through valve seat and enters cover
Any air.In some embodiments, lid can be located on the inside of cover, and cover and may include that air is allowed by cover to enter in cover
Slot in portion.
From the detailed description carried out below in conjunction with the accompanying drawings with claims, these and other spy will be more clearly understood
Sign.
Description of the drawings
In order to which the disclosure is more fully understood, presently in connection with attached drawing and detailed description with reference to briefly described below, wherein phase
Same reference numeral indicates identical component.
Fig. 1 shows the EEBD according to the embodiment of the present disclosure；
Fig. 2 shows the exploded views according to the inlet valve of the embodiment of the present disclosure；
Fig. 3 shows the sectional view of the inlet valve according to the embodiment of the present disclosure；
Fig. 4 A show another sectional view of the inlet valve according to the embodiment of the present disclosure；
Fig. 4 B show another sectional view of the inlet valve according to the embodiment of the present disclosure；
Fig. 5 shows the detailed view of the lid according to the embodiment of the present disclosure；And
Fig. 6 A- Fig. 6 C show the detailed view of the valve seat according to the embodiment of the present disclosure.
Specific implementation mode
Disclosed originally it should be appreciated that although the illustrated embodiment of one or more embodiments is illustrated below
System and method any amount of technology can be used to realize, it is no matter current whether known or not yet exist.The disclosure is never
Should be limited to illustrated embodiment, attached drawing and technology as shown below, but can within the scope of the appended claims and
It modifies in the full scope of their equivalent scheme.
The brief definition of following term should apply to entirely apply：
Term " including（comprising）" mean include but not limited to, and should be in patent context with usually used
Mode is explained；
The phrase " in one embodiment ", " according to one embodiment " etc. generally mean that special characteristic after phrase, structure or
Characteristic may include at least one embodiment of the present invention, and may include in the more than one embodiment of the present invention
（Importantly, this phrase not necessarily refers to the same embodiment）；
If something or other is described as " exemplary " or " example " by specification, should be understood as referring to nonexcludability example；
Term is " about（about）" or " about（approximately）" etc., it, can be such as ability when number is used together
Field technique personnel are understood, it is intended that the optional network specific digit, or alternatively, close to the range of the optional network specific digit；And
If specification stated elements or feature " can be with（may）", " can be with（can）", " can be with（could）", " should
（should）", " meeting（would）", " preferably（preferable）", " possibly（possibly）", " typically
（typically）", " optionally（optionally）", " such as（for example）", " often（often）" or " may
（might）”（Or other this language）Including or have feature, then do not require the particular elements or feature include or have the spy
Sign.This component or feature can be optionally included in some embodiments, or can be excluded.
Embodiment of the disclosure includes the inlet valve being used together with urgent respirator or EEBD.These EEBD are can be tight
The respirator used in the case of urgency, to protect a user from the smog in air, chemical substance, particle or other harmful elements
Influence, and provide respirable air to user.For example, smog, dust and other harmful substances matter may be in air
In in the case of, can by flee from fire or other emergencies user wear EEBD.EEBD may include air collector, cover and incite somebody to action
Air provides the hose to cover from cylinder.Typically, EEBD can be capable of providing breathing in about 10-15 minutes, this depends on cylinder
Volume.When air exhausts or uses up, user must remove cover immediately, or have the risk suffocated due to anoxic in cover.
Neck due to cover around user is sealed（To prevent harmful substance from entering cover）, which is likely difficult to quickly
It removes.In addition, if the environment that user is fleeing danger, then it may be problematic to spend time and efforts to remove cover.
If user is when they must remove cover still in hazardous environment, face, eyes and the head of user may be by
To the influence of harmful substance.In addition, if user is in emergency, user may be nervous and/or injured so that
User is difficult to remove cover, so as to cause the possibility of asphyxia.In addition, the user for wearing EEBD may be not affected by using EEBD
Training, and therefore remove cover may be to have any problem.
Applicant develops a kind of inlet valve on EEBD, can solve these worries.When cylinder provides air to cover
When, inlet valve can close.In some embodiments, suction valve closure can be kept come the pressure for the air supplied since cylinder, and
And inlet valve can not need any other element to keep valve to close, while still having the air supplied from cylinder.
When cylinder exhausts air, and no longer supplies air to cover, inlet valve may be opened, to allow user wearing
Continue to breathe while wearing cover.Even if this can allow user to also continue to wear cover when cylinder exhausts air.In some implementations
In example, which can also have filter, the filter operable to be filtered through the surrounding air that inlet valve enters cover.It will sucking
Valve, which is added to cover, can reduce the possibility worn and suffocated when cover.In addition, user can continue to wear cover, to protect user's
Head, eyes and face.
Referring now to Figure 1, showing the exemplary embodiment of EEBD100.EEBD100 may include that cover 102, cover 102 are operable
To assemble on the user's head.The cover 102 may include the sealing element 110 around user's neck, and wherein sealing element 110 can
Prevent extraneous air from entering cover 102.In addition, EEBD100 may include the cylinder 104 of breathable air, wherein breathable air via
Hose 106 is supplied to cover 102 from cylinder 104.In some embodiments, hose 106 could attach to the rear portion of cover 102.In other realities
It applies in example, hose 106 attaches at any other point on cover 102.
In some embodiments, cover 102 may include inlet valve 108.Cylinder 104 may include limited amount breathing air.Work as cylinder
104 when having used up, which can be automatically turned on, to allow user's breathing without removing cover 102.In some realities
It applies in example, inlet valve 108 may include filter, and the filter is operable to be breathed with filtering surrounding air for user.
Referring now to Figure 2, showing the exemplary embodiment of inlet valve 200.The inlet valve 200 could attach to cover（It is similar to
Inlet valve 108 as shown in Figure 1）.Inlet valve 200 may include that valve seat 202, wherein valve seat 202 could attach to hose 206（It is similar
Hose 106 in Fig. 1）.Hose 206 can be a part of EEBD, and can provide the breathable air from cylinder, such as scheme
Described in 1.
In some embodiments, hose 206 and valve seat 202 may include material, which can heat and be fused to each other（Or heat
Pressure）Hose 206 is attached to valve seat 202.For example, hose 206 may include rubber material, and valve seat 202 may include plastics
Material.When hose 206 and valve seat 202 are heated, these materials can partly melt and sealed against one another.In other embodiments
In, adhesive can be used for being attached hose 206 and valve seat 202.In another embodiment, another attachment can be used for being attached hose 206
With valve seat 202.In another embodiment, hose 206 can be mounted on by fixture on valve seat 202.
In some embodiments, inlet valve 200 may include the lid 204 for being attached to valve seat 202.In some embodiments, valve
Seat 202 may include screw thread 212, and lid 204 may include screw thread 216, and lid 204 is allowed to be threadedly coupled on valve seat 202.Another
In embodiment, valve seat 202 and lid 204 may include buckle, hook or another attachment mechanism.In some embodiments, lid 204 can be located at
In cover, and at least part of valve seat 202 can be located at outside cover.Lid 204 and valve seat 202 can be attached to each other by the opening in cover.
In some embodiments, lid 204 may include opening or slot 214, to allow air to enter in the inside of cover by lid 204.
In some embodiments, valve 200 may include that flexible membrane 208, wherein flexible membrane 208 are positively retained in valve seat 202
In slot 209.The inward flange 207 of flexible membrane 208 is positively retained in slot 209, allows the rest part of film 208 in response in valve 200
Pressure and be bent.In some embodiments, valve seat 202 may include opening 203, which can be located near flexible membrane 208.
In some embodiments, valve 200 may include that filter 210, filter are positively retained in valve seat 202.In some embodiments, empty
Gas can be by filter 210, and by opening 203, moves flexible membrane 208, and also by the slot 214 in lid 204 to enter
The inside of cover.In some embodiments, valve 200 may include circular shape, but in other embodiments, the shape of valve can be
Ellipse, rectangle, square or any other shape.
Referring now to Figure 3, showing the sectional view of valve 200.As described above, lid 204 may be threadably connected on valve seat 202（Through
By screw thread 212 and 216）.A part for cover 102 is positively retained between cover 204 and valve seat 202, and valve 200 is fixed to cover 102.
In some embodiments, lid 204 can be located in cover, and at least part of valve seat 202 can be located at outside cover.Lid 204 and valve seat 202 can
It is attached to each other by the opening in cover.In some embodiments, lid 204 may include opening or slot 214, to allow air to pass through lid
204 enter in the inside of cover.
In some embodiments, valve seat 202 may include protruding portion 205, wherein cover 102 can be fixed on lid 204 and valve seat 202
Protruding portion 205 between.In some embodiments, valve seat 202 may include operable filter 210 is maintained at valve seat 202
One or more pawls 220 of interior appropriate location.The inward flange 207 of flexible membrane 208 is positively retained in the slot 209 of valve seat 202
Appropriate location.In some embodiments, flexible membrane 208 can contact and seal with a part for valve seat 202.However, flexible membrane 208
It is also operable to be bent towards lid 204, while the inward flange 207 of film 208 is maintained at the appropriate location in slot 209.In some realities
It applies in example, the slot 214 of lid 204 can be located near flexible membrane 208.In some embodiments, a part for hose 206 can pass through
Valve seat 202 extends in lid 204.
Referring now to Fig. 4 A, another sectional view of valve 200 is shown.In embodiment shown in Figure 4 A, hose 206 can incite somebody to action
Breathable air 320 is supplied in the inside 302 of cover 102.Air 320 can be entered in the lid 204 of valve 200 by hose 206.So
Afterwards, air 320 can leave lid 204 via the slot 214 in lid 204.In an illustrated embodiment, can generate will be flexible for air 320
The pressure of 208 backup valve seat 202 of film.In other words, flowing through the air 320 of hose 206 and lid 204 " can close " valve 200, not permit
Perhaps any air passes through the opening 203 in valve seat 202 and/or flexible membrane 208.When EEBD has enough air supplies from cylinder
When, air-flow 320 can continue through hose 206.
Referring now to Fig. 4 B, another sectional view of valve 200 is shown.In the fig. 4 embodiment, it is supplied from cylinder by hose 206
Air may exhaust or may have been drained off.Therefore, the pressure on flexible membrane 208 can be removed, allow 208 direction of film
Lid 204 is inwardly " opening ".When the wearer breathes, negative pressure is generated on the inside of cover 102 302, flexible member 208 can be far from valve
Seat 202 and be bent, permission air 420 is by the opening 203 in valve seat 202, and by the slot 214 in lid 204, into cover
In 102 inside 302.In some embodiments, air 420 can by filter 210, wherein filter 210 it is operable with
The inside 302 that air 420 enters cover 102 removes deleterious particle and/or chemical substance from air 420 before.
In some embodiments, flexible membrane may include air-locked any flexible material.For example, flexible membrane may include plastics
Material, rubber material or any kind of flexible rubber, such as ethylene propylene diene rubber（EPDM）, nitrile rubber（NBR）With it is natural
Rubber（NR）.
In some embodiments, filter may include operable with filtering noxious particle and/or chemical substance from air
Any filtering material.Filter is operable with filter smoke, dust and other harmful substances matter.For example, filtering material may include
Polypropylene（PP）It is meltblown object, polyethylene（PET）Non-woven fabrics, glass fibre non-woven etc..
Referring now to Figure 5, showing the detailed view of lid 204.In some embodiments, multiple slots 214 can surround lid 204
Whole circumference extends.Lid 204 may also include the screw thread 216 for lid 204 to be attached to valve seat.In some embodiments, screw thread
216 can be located at the lower section of slot 214.In some embodiments, lid 204 can be cheese, the air that will be flowed from hose 206
Be directed on flexible membrane 208, to by flexible membrane 208 against valve seat 202（As shown above）It is sealed.
Referring now to Fig. 6 A-Fig. 6 C, the detailed view of valve seat 202 is shown.Fig. 6 A show the side view of valve seat 202.Fig. 6 B
The bottom orthogonal view of valve seat 202 is shown.Fig. 6 A show the sectional view of valve seat 202 and filter 210.
Valve seat 202 may include the opening 600 for receiving hose, wherein in some embodiments, opening 600 can pass through
The center of valve seat 202.Valve seat 202 may include the screw thread 212 for valve seat 202 to be attached to lid.In some embodiments, valve seat
202 may include protruding portion 205.In some embodiments, valve seat 202 may include that the one or more for extending through valve seat 202 is opened
Mouth 203.In some embodiments, valve seat 202 may include the slot 209 of the part for keeping flexible membrane.In some embodiments
In, valve seat 202 is operable to keep filter 210, wherein filter 210 to may be mounted in valve seat 202, can pass through one or more
A pawl 220 is held in place.In some embodiments, filter 210 can cover opening 203 so that pass through opening 203
Any air must also pass through filter 210.In some embodiments, filter 210 may include for being assemblied in around hose
Opening 602, split shed 602 can be similar to opening 600.In some embodiments, filter 210 may include it is flexible and/or
Compressible material, wherein filter 210 are easily positioned in valve seat 202.
Some embodiments of the present disclosure may include the method for assembling the inlet valve being used together with EEBD.It can provide
Hose, the wherein hose are operable breathable air to be supplied to the cover of EEBD from cylinder.Hose could attach to the valve of inlet valve
Seat.In some embodiments, valve seat is attached hoses to may include hose being hot-pressed onto valve seat.Flexible membrane could attach to valve seat,
Wherein valve seat include opening, wherein flexible membrane sealed opening, and wherein flexible membrane it is operable in response to the negative pressure in cover and
Far from open loop.In some embodiments, flexible membrane valve seat is attached to may include a part for flexible membrane being fixed on valve
In slot on seat.Valve seat is attached to cover by being threadedly coupled on valve seat by that will cover, wherein the part covered is fixed on valve seat
Between lid.
In some embodiments, this method may also include offer filter, and the filter is operable to be assemblied in valve seat,
And it is filtered through any air that valve seat enters cover.In some embodiments, lid can be located on the inside of cover, and cover and can wrap
Including allows air by covering the slot entered in cover inside.
Although the various embodiments according to principle disclosed herein, art technology have been shown and described above
Personnel can modify to it in the case where not departing from the spirit or teaching of the disclosure.Embodiment described herein be only to represent
Property, and be not intended to restrictive.Many variations, combination and modification are possible and within the scope of this disclosure.By
Combination, feature that is integrated and/or omitting one or more embodiments and the alternate embodiment that generates are also within the scope of this disclosure.
Therefore, protection domain is not limited by the description of above-mentioned progress, but is limited by appended claims, which includes power
All equivalent programs of sharp claim theme.It is incorporated to each claim as further disclosure in specification, and
And claim is the embodiment of the present invention.In addition, above-mentioned any advantages and features can relate to specific embodiment, but do not answer
By the application of the claim of this publication be limited to realize any one or all of above-mentioned advantage or it is as characterized above in appoint
What process and structure of one or all.
In addition, chapter title used herein is in order to consistent with the suggestion of 37C.F.R 1.77, or in other ways
Organizational cues are provided and are provided.These titles should not limit or characterize any claim that may be issued by present disclosure
Described in one or more inventions.Particularly and for example, although title may relate to " technical field ", claim is not
It should be limited by selection under this heading to describe the language of so-called technical field.Further, right in " background technology "
The description of technology is not necessarily to be construed as recognizing the prior art that certain technologies are any invention in the disclosure." invention content " not yet
It is considered as the limited features of one or more inventions described in issued claim.In addition, to odd number in the disclosure
Any reference of " invention " should not be taken to argue that only there are one novelty points in the disclosure.It can be according to issuing from the disclosure
The limitation of multiple claims illustrates multiple inventions, and this claim correspondingly limits the one or more thus protected
Invention and its equivalent program.In all cases, in view of content of this disclosure, the advantages of the scope of the claims should be with its own
Consider, without should be limited by title described in this paper.
Wider term such as including（comprises）Including（including）With with use be understood that and become
Relatively narrow term such as by ... form, substantially by ... form and consist essentially of offer support.Relative to any of embodiment
Element uses term " optionally（optionally）", " can be with（may）", " possibly（might）", " possibly
（possibly）" etc. mean not needing the element, or alternatively need the element, two kinds of alternative solutions are all in one or more
In the range of embodiment.In addition, it is solely for the purpose of illustration and provide to exemplary reference, and be not intended to exclusive.
Although providing several embodiments in the disclosure, but it is to be understood that in the spirit or model for not departing from the disclosure
In the case of enclosing, disclosed system and method can be implemented with many other particular forms.This example is considered as explanation
Property and not restrictive, and be intended to be not limited to details given herein.For example, can by various elements or component combination or
It is integrated in another system, or can be omitted or do not realize certain features.
In addition, without departing from the scope of the disclosure, being described and illustrated as discrete or dividing in various embodiments
From technology, system, subsystem and method can combine with other systems, module, techniques or methods or integrated.It is shown or begs for
It can indirectly couple or lead to by some interfaces, equipment or intermediate member by for directly coupled with each other or communication other projects
Letter, either electrically, mechanically or other manner.Those skilled in the art can determine the other of change, replacement and change
Example, and these can be carried out in the case where not departing from spirit and scope disclosed herein and change, replace and change.
Claims (15)
1. a kind of and cover（102）The inlet valve being used together（200）, the inlet valve（200）Including：
Valve seat（202）, wherein the valve seat（202）It is assemblied in the cover（102）Opening in；
Lid（204）, operable to be attached to the valve seat（202）, wherein the lid（204）Positioned at the cover（102）Institute
State inside（302）In, and the wherein described cover（102）A part be fixed on the valve seat（202）With the lid（204）It
Between；
Hose（206）, it is operable to provide breathable air to the inside of external member, wherein the hose（206）Attachment
To the valve seat（202）；
Flexible membrane（208）, operable in response to the inlet valve（200）Interior pressure and move,
Wherein：
When air flows through the hose（206）When, the flexible membrane（208）It closes；
The hose is flowed through when not having air（206）When, the flexible membrane（208）It will be responsive to the sucking of user and open；
The valve seat（202）Including opening（203）, to allow in the flexible membrane（208）Surrounding air passes through described when opening
Valve（200）；And
The lid（204）Including allowing air into the cover（102）The inside slot（214）.
2. inlet valve as described in claim 1（200）, wherein the hose（206）Pass through the valve seat（202）It is described in
The heart.
3. inlet valve as claimed in claim 2（200）, wherein the hose（206）And valve seat（202）Being heated to will be described
Hose（206）It is attached to the valve seat（202）.
4. inlet valve as described in claim 1（200）, further include filter（210）, the filter is operable to cover
State valve seat（202）The opening（203）, and it is filtered through the inlet valve（200）To the cover（102）The inside
The extraneous air.
5. inlet valve as claimed in claim 4（200）, wherein the filter（210）Pass through the valve seat（202）On pawl
（220）It is maintained at the valve seat（202）It is interior.
6. inlet valve as described in claim 1（200）, wherein the flexible membrane（208）A part be attached to the valve seat
（202）In slot（209）.
7. inlet valve as described in claim 1（200）, wherein the lid（204）Including screw thread（216）, wherein the valve seat
（202）Including screw thread（212）, and the wherein described lid（204）It is threadedly coupled to the valve seat（202）On.
8. inlet valve as described in claim 1（200）, wherein the inlet valve（200）, the cover（102）With the hose
（206）It is emergency escape breathing apparatus（EEBD）（100）A part.
9. inlet valve as described in claim 1（200）, wherein when air is from the hose（206）When flowing into the valve, institute
State flexible membrane（208）Against the valve seat（202）A part be sealed, to prevent surrounding air via the valve seat
（202）In opening enter the valve（100）.
10. a kind of emergency escape breathing apparatus（EEBD）（100）, including：
Cylinder（104）, accommodate limited amount breathable air；
Cover（102）, operable to be sealed with the neck for assembling on the user's head and surrounding user；
Hose（206）, it is operable with by breathable air from the cylinder（104）The cover is provided（102）The inside
（302）；
Inlet valve（200）, it is attached to the hose（206）, the inlet valve（200）Including：
Valve seat（202）, wherein the valve seat（202）It is assemblied in the cover（102）Opening in；
Lid（204）, operable to be attached to the valve seat（202）, wherein the lid（204）Positioned at the cover（102）Institute
State inside（302）In, and the wherein described cover（102）A part be fixed on the valve seat（202）With the lid（204）It
Between；
Flexible membrane（208）, operable in response to the inlet valve（200）Interior pressure and be bent,
Wherein：
When air is from the hose（206）When flowing into the valve, the flexible membrane（208）Against the valve seat（202）One
Part is sealed, to prevent surrounding air from entering the cover（102）；
The hose is flowed through when not having air（206）When, the flexible membrane（208）It will be responsive to the sucking of user and separate institute
State valve seat（202）Bending allows surrounding air via the valve seat（202）In opening（203）Into the cover（102）；With
And
The lid（204）Including allowing air via the inlet valve（200）Into the cover（102）The inside slot
（214）.
11. EEBD as claimed in claim 10（100）, wherein the hose（206）Pass through the valve seat（202）It is described in
The heart.
12. EEBD as claimed in claim 10（100）, wherein the inlet valve（200）It further include filter（210）, described
Filter is operable to cover the valve seat（202）The opening（203）, and it is filtered through the inlet valve（200）It arrives
The cover（102）The inside the extraneous air.
13. EEBD as claimed in claim 10（100）, wherein the inlet valve（200）Including circular shape.
14. EEBD as claimed in claim 10（100）, wherein the lid（204）Including screw thread（216）, wherein the valve seat
（202）Including screw thread（212）, and the wherein described lid（204）It is threadedly coupled to the valve seat（202）On.
15. EEBD as claimed in claim 10（100）, wherein the lid（204）It, will be from the hose for cheese
（206）The air of flowing is directed to the flexible membrane（208）On, thus by the flexible membrane（208）Against the valve seat（202）
It is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210136223.5A CN114558257B (en) | 2015-11-13 | 2015-11-13 | Automatic opening suction valve for emergency escape breathing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/094546 WO2017079967A1 (en) | 2015-11-13 | 2015-11-13 | Auto-open inhalation valve for emergency escape breathing device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210136223.5A Division CN114558257B (en) | 2015-11-13 | 2015-11-13 | Automatic opening suction valve for emergency escape breathing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108472519A true CN108472519A (en) | 2018-08-31 |
| CN108472519B CN108472519B (en) | 2022-03-01 |
Family
ID=58694615
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580085712.0A Active CN108472519B (en) | 2015-11-13 | 2015-11-13 | Automatic opening suction valve for emergency escape breathing equipment |
| CN202210136223.5A Active CN114558257B (en) | 2015-11-13 | 2015-11-13 | Automatic opening suction valve for emergency escape breathing equipment |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210136223.5A Active CN114558257B (en) | 2015-11-13 | 2015-11-13 | Automatic opening suction valve for emergency escape breathing equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN108472519B (en) |
| WO (1) | WO2017079967A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4418788A1 (en) * | 1994-05-24 | 1995-11-30 | Interspiro Gmbh | Breathing connection with regulator |
| CN1518650A (en) * | 2001-06-25 | 2004-08-04 | 3M | Respirator valve |
| CN103212168A (en) * | 2013-03-13 | 2013-07-24 | 上海宝亚安全装备有限公司 | Air suction valve and mask both with function of switching between ambient air and air in air bottle |
| CN203620111U (en) * | 2013-11-13 | 2014-06-04 | 抚顺市亚龙安全防护装备厂 | Full mask respiration change-over valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202751705U (en) * | 2012-09-03 | 2013-02-27 | 上海港凯净化制品有限公司 | Breather valve structure |
| CN203564660U (en) * | 2013-11-22 | 2014-04-30 | 航宇救生装备有限公司 | High-flow suction valve for pressurizing oxygen-supplying mask |
-
2015
- 2015-11-13 CN CN201580085712.0A patent/CN108472519B/en active Active
- 2015-11-13 WO PCT/CN2015/094546 patent/WO2017079967A1/en active Application Filing
- 2015-11-13 CN CN202210136223.5A patent/CN114558257B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4418788A1 (en) * | 1994-05-24 | 1995-11-30 | Interspiro Gmbh | Breathing connection with regulator |
| CN1518650A (en) * | 2001-06-25 | 2004-08-04 | 3M | Respirator valve |
| CN103212168A (en) * | 2013-03-13 | 2013-07-24 | 上海宝亚安全装备有限公司 | Air suction valve and mask both with function of switching between ambient air and air in air bottle |
| CN203620111U (en) * | 2013-11-13 | 2014-06-04 | 抚顺市亚龙安全防护装备厂 | Full mask respiration change-over valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114558257A (en) | 2022-05-31 |
| CN108472519B (en) | 2022-03-01 |
| CN114558257B (en) | 2023-06-06 |
| WO2017079967A1 (en) | 2017-05-18 |
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