CN103813833B - Breathing component including blocking mechanism - Google Patents
Breathing component including blocking mechanism Download PDFInfo
- Publication number
- CN103813833B CN103813833B CN201280036550.8A CN201280036550A CN103813833B CN 103813833 B CN103813833 B CN 103813833B CN 201280036550 A CN201280036550 A CN 201280036550A CN 103813833 B CN103813833 B CN 103813833B
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- China
- Prior art keywords
- component
- arm
- respiratory component
- respiratory
- axial passage
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B19/00—Cartridges with absorbing substances for respiratory apparatus
-
- 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
- A62B9/04—Couplings; Supporting frames
Abstract
The invention discloses breathing component, it includes the first respiratory component and the second respiratory component and blocking mechanism.The blocking mechanism can engage at least one holding structure of respiratory component, so as to prevent first respiratory component from departing from from second respiratory component.When to the latch actuator applying power, at least one described breech lock can depart from from the holding structure, so as to allow first respiratory component to depart from from second respiratory component.The invention also discloses the respiratory component including such blocking mechanism or suitable for being used together with such blocking mechanism.
Description
The present invention relates to respiratory protection equipment, and relate more specifically to include the breathing component of blocking mechanism, it is described to close
Latch mechanism is used to releaseably engage the first respiratory component with the second respiratory component.
Background technology
Various respiratory protection equipments are used to provide clean air to its user.In some cases, by first passing through
Set filter draws ambient air in filtration cartridges that clean air is supplied into user.Filter cylinder could attach to respirator face
Cover main body, the mask body is worn on the face of people, above his or her nose and oral area.In such respiratory protection equipment
In, by the negative pressure that wearer's air-breathing is formed, through filter draws ambient air., can be from drum in other method
Blower fan force surrounding air through filter pressure under clean air is supplied to user.Such pressue device is referred to as dynamic
Power air-purifying respirator or PAPR.Alternatively, from pressurized canister by clean air respiratory protection can be supplied to fill
The user put.Such device is referred to as self-contained breathing apparatus or SCBA.In in these devices each, clean air supply
Source (for example, filter cylinder or flexible pipe from PAPR or SCBA) is connected to the mask master being worn on above the nose of user and oral area
Body.If user expects the protection on whole face and head, eyes and head can be also covered.
If having developed the system of dry type in respirator field clean air source is attached into breathing mask.One
Plant ubiquitous system and use screwed part, the screwed part is attached to corresponding threaded fittings, see, for example, United States Patent (USP) 5,
222,488th, 5,063,926,5,036,844,5,022,901,4,548,626,4,422,861 and 6,575,165.Screw thread filter cylinder
Generally there is spirality or shape screw thread is promoted, it coordinates with tapped collar or socket.Filter cylinder is set to revolve in the appropriate direction
Turn to allow filter cylinder to be attached to respirator body or remove from respirator body.Ensure connecing using the packing ring of elastically deformable
Air-tight fit is maintained at mouthful.Come releaseably to lock screw thread clean air supply source in place using blocking device.
See, for example, United States Patent (USP) 6,575,165.
Instead of thread attachment mechanism, clean air source is attached to respirator using bayonet type closure member.Bayonet type
There is closure member lock tab and recess secure the components together.Lock tab can be protruded from filter cylinder, and can be with breathing
Recess engagement in hole in device main body.When making filter cylinder rotate in the appropriate direction, filter cylinder and mask body engagement-ginseng
See United States Patent (USP) 6,216,693 and 5,924,420.It is had an advantage that using bayonet type accessory, filter cylinder can be (generally few by fast-turn construction
In about 1/2nd circles) engaged with mask body.
Indicate that filter cylinder is correctly connected to respirator mask-ginseng using sound indicating device in bayonet socket closed-system
See United States Patent (USP) 4,934,361 and 4,850,346.Lug on mask has been provided with the gentle slope with inclined-plane or cam, and it is determined
Position gradually bends or deformed into the rib made on filter cylinder.As filter cylinder and mask rotate to latched position relative to each other, cam with
Ribbed joint, and rib and lug is bent until rib is fallen from the end of cam suddenly.This is acted suddenly generates audible click
Sound.
The respirator with snap-fitted filter cylinder is also designed, Yushack et al. United States Patent (USP) 5,579,761 is such as authorized
Shown in.In this method, only filter cylinder is instantaneously anchored to by the corresponding contained structure pressed to filter cylinder on mask body
Engaged with mask body.The rotary motion of filter cylinder is not needed.
It it is known that the threaded portion of such respiratory protection equipment, wherein clean air supply source and clean air contained structure
Divide and be engaged with each other with high pitch, and include the slow portion (d é tente) of one.Block piece prevents from cleaning sky during fixed operation
Gas supply source crosses rotation relative to mask body.Referring to the US 7,320,722 for authorizing Mittelstadt et al..
The content of the invention
In one implementation, component is breathed the present invention relates to one kind, the breathing component includes the first respiratory component
With the second respiratory component.First respiratory component has receiving surface, and the receiving surface includes the first axial passage wherein.The
Two respiratory components have at least one holding structure and the second axial passage, and second axial passage is configured to and size quilt
It is designed as setting with the described first axial passage so that second respiratory component and first respiratory component
The receiving surface formation sealing connection.The breathing component also includes the blocking mechanism for being attached to the first respiratory component,
The blocking mechanism includes elastic component, at least one breech lock protruded inwardly from towards first axial passage and breech lock cause
Dynamic device.At least one described breech lock can engage at least one holding structure, so as to prevent first respiratory component from described
Second respiratory component departs from.When to the latch actuator applying power, at least one described breech lock can keep knot from described
Structure departs from, so as to allow first respiratory component to depart from from second respiratory component.
In another implementation, the present invention relates to a kind of breathing component including the first respiratory component, described first
Respiratory component has the mouth for being used for that first respiratory component to be releaseably connected to the second respiratory component, the mouth
With the receiving surface wherein with the first axial passage, first respiratory component also includes being attached to first breathing
The locking mechanism of part.The blocking mechanism include elastic component, towards first axial passage protrude inwardly from least one
Breech lock and latch actuator.When to the latch actuator applying power, at least one described breech lock can move away from institute
State the first axial passage.
In another implementation, the present invention relates to a kind of breathing component including the first respiratory component, described first
Respiratory component has the mouth for being used for that first respiratory component to be releaseably connected to the second respiratory component.It is real herein
In existing mode, the holding shoulder that the mouth is included therein the projection with axial passage, is arranged on the outer surface of the projection
Portion and the containment member being arranged on the outer end of the annular projection.
Brief description of the drawings
With reference to accompanying drawing, the present invention can be more fully understood by the detailed description below to various embodiments of the present invention, wherein：
Fig. 1 shows the exemplary breathing component according to the present invention；
Figure 1A shows the partial enlarged drawing of Fig. 1 breathing component；
Fig. 2A shows the partial exploded view of another exemplary breathing component；
Fig. 2 B show the supplement partial exploded view of the breathing component shown in Fig. 2A；
Fig. 2 C show another view of the breathing component shown in Fig. 2A and Fig. 2 B；
Fig. 2 D show the profile of the mouth of the exemplary breathing component according to the present invention；
Fig. 3 A show the partial exploded view of another exemplary breathing component；
Fig. 3 B show the supplement partial exploded view of the breathing component shown in Fig. 3 A；
Fig. 4 shows the partial exploded view of another exemplary breathing component；
Fig. 5 shows another exemplary breathing component according to the present invention；And
Fig. 6 shows another exemplary breathing component according to the present invention.
Accompanying drawing is not necessarily drawn to scale.Like numerals used in accompanying drawing refer to like.It will be appreciated, however, that
The part in given accompanying drawing is referred to using label and is not intended to limit the part that identical labelled notation is used in another accompanying drawing.
Embodiment
Except as otherwise noted, otherwise all scientific and technical terminologies used herein have implication commonly used in the art.Give herein
The definition gone out is conducive to understanding some terms frequently used herein, and is not intended to limit the scope of the present invention.
Except as otherwise noted, otherwise used in specification and claims expression physical dimension, amount and physical
All quantity of matter will be understood as modifying by term " about " in all cases.Unless present disclosure is otherwise clear and definite
Point out, otherwise singulative " one " used in this specification and the appended claims and " described " are covered refers to multiple
For the embodiment of thing.Unless present disclosure is otherwise explicitly pointed out, otherwise make in this specification and the appended claims
Term "or" is typically used with the meaning including "and/or".
Fig. 1 shows a breathing component 10 according to the present invention.In the exemplary embodiment, breathing component 10 includes negative
Press personal respiratory protection device.Breathing component 10 includes the first respiratory component 12 (here, mask body) and the second respiratory component
14 (here, clean air supply sources, such as filter element or filter cylinder).Respiratory protection equipment shown in Fig. 1 is referred to as " negative pressure " and exhaled
Protection device or mask are inhaled, because compared with " malleation " source of such as power fan or compressed air, it, which is depended on, wears
The lung of person is drawn air into mask.As described above, positive pressure respiration protection device or mask use and come from air blower or pressure
The air of tank (described device is generally carried by wearer) is provided with delivering clean air or oxygen.Positive pressure system is commonly using soft
Pipe or another appropriate conduit, are used as the attachment component for clean air supply source.PAPR example is shown in United States Patent (USP)
6,250,299th, in 6,186,140,6,014,971,5,125,402,4,965,887,4,462,399 and 4,280,491.PAPR
Filter is forced air across, the filter can be placed in the unit worn around the waist of user.The example of SCBA system
It is shown in United States Patent (USP) 6,478,025,4,886,056,4,586,500 and 4,437,460.
In Fig. 1, the first respiratory component 12 is shown as being fitted in above at least nose, oral area and the eye of wearer
The main part of full-face respirators mask-see, for example, the United States Patent (USP) 5,924,420 for authorizing Reischel et al..However,
It is also within the scope of the invention using " hemihedral form " mask being fitted in above the nose and oral area of wearer, see, for example, authorizing
Mittelstadt et al. United States Patent (USP) 7,320,722.Exemplary first respiratory component 12 may include conformal facial contact structure
Part 16, rigid structural components 18 and one or more bands disposed thereon for accommodating belt or one or more belts
Tool or belt contained structure 20, it makes breathing component 10 to be supported on when in use on the head of people.Rigid structural components
18 may include at least one exhalation vents 24, and it allows the air of exhalation to be discharged from internal gas space.Internal gas space is determined
Justice is the space between mask body and the face of wearer.Outlet valve (here, being covered by expiration bonnet 27) may be provided at face
To prevent air from entering internal gas space in intake period in cover main body 12, while also allowing the air of exhalation in intake period
Quickly discharged from the space.The example for the outlet valve that can be used in combination with the breathing component of the present invention is included with flexible fin
Outlet valve, the flexible vane piece is dynamically opened in response to the air of exhalation.
With further reference to Fig. 1 and Figure 1A, exemplary first respiratory component 12 is included the first breathing releaseably
Part 12 is connected to the mouth 30 of the second respiratory component 14.Mouthfuls 30 may include receiving surface 32, and the receiving surface has the wherein
One axial passage 34.First projection 36 may be provided on receiving surface 32, and it may be structured to and is dimensioned to surround
One axial passage 34.Preferably, the first projection is generally annular.Breathing component 10 includes blocking mechanism 40.This exemplary implementation
The blocking mechanism 40 of example is attached to the first respiratory component 12.However, in other exemplary embodiments, blocking mechanism 40 is attached
To the second respiratory component 14.Blocking mechanism 40 include elastic component 42, towards the first axial passage 34 protrude inwardly from least one
Breech lock 44 and latch actuator 46.Blocking mechanism is configured such that when to latch actuator applying power, described at least one
Individual breech lock 44 can move away from the first axial passage 34.In the exemplary embodiment, actuator 46 includes blocking mechanism 40
Free end, necessary power can be applied by the way that the free end of blocking mechanism presses together as shown in the arrow F in Figure 1A.
The other embodiment of the bolt lock mechanism of the present invention and other structure are discussed below in reference to Fig. 2A -4.
With further reference to Fig. 1 and Figure 1A, the second respiratory component 14 can be the filter cylinder with housing 50, and filter element can quilt
It is contained in the housing (filter element is not shown).In other exemplary embodiments, filter element can be not provided with housing.Shell
Body lid or grid 52 may be provided on the front of the second respiratory component 14, to encapsulate and protect filter element.Can in filtering cartridge lid 52
With multiple openings 54, to allow easily to aspirate the air from exterior gas space through lid 52 in intake period, so that
The air can be filtered by filter element.Filter element can be or can be including gas and/or particulate filter, its example
Son shows or discussed in following patent literature：6,743,464 (Insley et al.), 6,627,563B1 (Huberty), 6,
454,986 (Eitzman et al.), 6,660,210,6,409,806 and 6,397,458 (Jones et al.), 6,406,657
(Eitzman et al.), 6,391,429 (Senkus et al.), 6,375,886 (Angadjivand et al.), 6,214,094
(Rousseau et al.), 6,139,308 (Berrigan et al.) and 6,119,691 (Angadjivand et al.), 5,763,078
With 5,033,465 (Bran et al.) and 5,496,785 and 5,344,626 (Abler).Pneumatic filter may include for example to fill
The activated carbon granule of bed or adhesive-bonded form.Particulate filter may include the electrically charged microfibre of non-woven fibre web form.
Second respiratory component 14 also includes mouth 60, and the mouth is used to releaseably connect the second respiratory component 14
To the first respiratory component 12.Mouth 60 includes the second axial passage 62, and the passage is in fluid communication via filter element and surrounding air,
So that the air-breathing of user makes through the opening 54 in filtering cartridge lid 52, surrounding air is drawn into second axially through filter element
In passage 62.Second axial passage 62 is configured to and is dimensioned to when the second respiratory component 14 is attached to the first respiratory region
During part 12, set with the fluid flow communication of the first axial passage 34 of the first respiratory component 12.Preferably, the second respiratory component 14 is right
Afterwards with the connection of the formation sealing of receiving surface 32 of the first respiratory component 12.
Second respiratory component 14 also includes at least one holding structure 66, and in certain embodiments, the holding structure can
It is arranged in the second projection 64.Second projection 64 may be structured to and be dimensioned to surround the second axial passage 62.Second
Projection 64 is preferably annular.At least one holding structure 66 be configured such that at least one breech lock 44 can engage it is described at least
One holding structure 66, so as to prevent the first respiratory component 12 from departing from from the second respiratory component 14.In addition, to latch actuator
During 46 applying power, at least one breech lock 44 can depart from from least one holding structure 66, so as to allow the first respiratory component 12
Depart from from the second respiratory component 14.
One of ordinary skill in the art will readily appreciate that, can be within the scope of the invention to above-mentioned example embodiment
Carry out various modifications.For example, as the various structures shown in a part for the first respiratory component 12 (for example, mouth 30, receiving surface
32nd, one or more of blocking mechanism 40 etc.) can be conversely the second respiratory component 14 a part, vice versa.
Fig. 2A shows the partial exploded view of another exemplary breathing component 100 according to the present invention.Fig. 2 B show breathing
The supplement partial exploded view of component 100, for preferably showing the structure hidden in Fig. 2A.Fig. 2 C show to breathe component 100
Another view, some of building blocks are assembled together.Exemplary breathing component 100 includes the first respiratory component
120 (sections for being shown schematically as respirator mask) and the second respiratory component 180 (are shown schematically as one of filter cylinder
Point).Exemplary first respiratory component 120 includes mouth 130, and the mouth is used for releaseably by the first respiratory component 120
It is connected to the second respiratory component 180.Mouth 130 includes receiving surface 132, and the receiving surface has the first axial passage wherein
134.First projection 136 is arranged on receiving surface 132, and is configured to and is dimensioned to surround the first axial passage
134.Preferably, the first projection includes generally a cylindrical shaped wall part 136a.First projection may also include it is one or more positioning and/or
Anti-rotational structure, such as one or more lug 136b.Additionally or alternatively, receiving surface 132 can be limited
Surely the groove set around the first axial passage.
Exemplary second respiratory component 180 includes mouth 160, and the mouth is used for releaseably by the second respiratory component
180 are connected to the first respiratory component 120.Mouth 160 includes the second axial passage 162, and the passage is configured to and size is set
It is calculated as when the second respiratory component 180 is attached to the first respiratory component 120, the first axial passage with the first respiratory component 120
134 fluid flow communications are set.Second projection 164 is configured to and is dimensioned to surround the second axial passage 162.At some
In exemplary embodiment, the first projection 136 is configured to be housed inside in the second projection 164.Second projection 164 can substantially ring
Shape.One or more positioning/anti-rotational structure the 136b being configured to the first projection 136 can be found in the second projection 164
The one or more positioning coordinated and/or anti-rotational structure 164a.In one embodiment, it is one or more to position and/or anti-
Rotational structure 164a can be the one or more grooves for being configured to accommodate one or more lug 136b.Positioning/anti-rotational
Other constructions of element are also within the scope of the invention.Generally, the first respiratory component and the second respiratory component can each include with
At least one cooperation anti-rotation element that first annular projection and the second annular projection are disposed adjacent.
Second respiratory component 180 also include at least one holding structure 166, such as one or more shoulders or flange, its
It may be provided in the second projection 164, the annular shoulder or flange of the setting of second channel 162 be shown around in Fig. 2A-C.
In other exemplary embodiments, one or more holding structures may include for example to be arranged on such as around axial passage
Multiple projections or projection in two projections 164.In some exemplary embodiments, the mouth 130 of the first respiratory component 120 includes close
Element 132a is sealed, as shown in Figure 2 D.In the illustrated embodiment, potted component 132a includes the lip being arranged on receiving surface 132
Edge seal.Preferably, lip seal member is around the first axial passage 134.Potted component 132a may be structured to exhale with second
Inhale potted component (for example, inclined sealing surface 168) cooperation of the mouth 160 of part 180.
Potted component can be made up of flexible rubber or rubber type of material or including flexible rubber or rubber type of material.Example
Property suitable material include thermoplastic elastomer (TPE) (for exampleOrBlock copolymer), thermoplastic vulcanizates
Rubber is (for exampleMaterial) or various thermoset rubber materials (such as natural latex rubber, poly- isoamyl two
Alkene, nitrile, EPDM, butyl rubber or silicon rubber).Potted component 132a removably can be attached or be assembled into the portion of breathing component
Part, or potted component 132a can be overmolded and be directly permanently attached to this base part.The alternative arrangement mode of potted component
May include may be in the compression washer on receiving surface 132 or flexible closed-cell foam element.Another alternative sealing member
Part arrangement can use O-ring type seal, and it can compress against surface 132, for example, being exhaled in the first respiratory component and second
Radial compression is slided on the radial fit surface for inhaling part.First is may be provided at according to any example seal element of the present invention
At respiratory component, the second respiratory component or any suitable position of the two.
Breathing component 100 also includes blocking mechanism 140.The blocking mechanism 140 of this exemplary embodiment can be removably
Or it is fixedly attached to the first respiratory component 120.For example, mouth 130 can be inserted into the opening 122 of the first respiratory component 120 so that
At least a portion of mouth is in the side of opening, and its at least a portion is in opposite side.For example, mouth 130 can have around the flat of periphery
Face flange, to prevent it from passing through opening.Blocking mechanism 140 can be assembled in mouth 130, and lid 150 is in the top of blocking mechanism 140
(for example, via snap-fitted attachment) is attached to mouth 130, and mouth 130 and blocking mechanism 140 are remained into the first respiratory component
120。
Blocking mechanism 140 includes the breech lock 144a of elastic component 142 and first and the second breech lock 144b, it is described be latched in by
It is inwardly projecting towards the first axial passage 134 when blocking mechanism and the assembling of the first respiratory component so that at least one described in their engagements
Individual holding structure 166, so as to prevent the first respiratory component 120 from departing from from the second respiratory component 180.First breech lock 144a is arranged on
The side of axial passage 134, and the second breech lock 144b is arranged on the opposite side of axial passage 134 (preferably, with the second breech lock
144b is relative).
One or both of first breech lock 144a and the second breech lock 144b can have bowed shape, and this allows them to surround
First axial passage 134 and first projection 136 (if present) bending.In one embodiment, the first breech lock 144a
Each include the arm with free end 146a and 146b with the second breech lock 144b.Arm can be connected to each other a position, and
Intersect in another location.For example, in the illustrated embodiment, the first breech lock 144a and the second breech lock 144b are via elastic component 142
It is connected to each other.Elastic component 142 can be the separate part in the region that linking arm is either integrally formed with arm or can be
Any other part of blocking mechanism 140.In the exemplary embodiment, whole blocking mechanism can be considered elastic component 142.Bullet
Power component 142 is sufficiently flexible, to allow the first breech lock 144a and the second breech lock 144b abundant when to its 146 applying power of actuator
The first axial passage 134 of the first respiratory component 120 is deflected and moves away from, so that blocking mechanism 140 is from the second respiratory component
180 holding structure 166 departs from.On the other hand, elastic component 142 must be sufficiently resilient, initial to return to its in removal force
Shape.
In one embodiment, the first breech lock 144a and the second breech lock 144b are biased relative to each other.Specifically, in figure
Under the non-stress state of blocking mechanism 140 shown in 2A and Fig. 2 B, the first breech lock 144a of blocking mechanism 140 and the second breech lock
144b than blocking mechanism 140 shown in Fig. 2 C when being inserted into mouth 130 closer to intersection at the position of its connection end.Work as breech-block
When structure 140 is inserted into mouth 130, the projection 137 between the first breech lock 144a and the second breech lock 144b is arranged on even to causing
First breech lock 144a and the second breech lock 144b are maintained deflected by dynamic device 146 before applying any power.It is exemplary at some
In embodiment, blocking mechanism 140 is anchored to the depression being formed in the mouth 130 of the first respiratory component 120 using pin 145
In 135.In such exemplary embodiment, the first latch arms and the second latch arms can be pivoted around pin 145.Can be by by pin
Blocking mechanism 140 is assembled with mouth 130 in 145 insertion depressions 135.Make the first breech lock 144a and the second breech lock 144b relative to
Offset with respect to each and further help to ensure that firm connection between the first respiratory component and the second respiratory component.Therefore, door bolt is forced
Lock is maintained at locked position of coupler, therefore always engaging retaining structure 166 when resting, except non-user discharges the mechanism intentionally.
Illustrating the latch actuator 146 of embodiment includes two of the arm as the first breech lock 144a and the second breech lock 144b
Free end 146a and 146b.In such exemplary embodiment, the first breech lock 144a and the second breech lock 144b can be in its free ends
Nearby intersect, actuating is configured for provide additional leverage.Blocking mechanism 140 can be operated as follows.As the arrow F in such as Fig. 2A
It is shown, when the direction towards another free end is at least one of free end 146a and 146b (preferably, both) applying powers,
First breech lock 144a and the second breech lock 144b move away from the first axial passage 134.Once the first breech lock 144a and the second breech lock
144b is crossed and is departed from holding structure 166, and the second respiratory component 180 can depart from from the first respiratory component 120.Conversely, ought not
To the applying power of actuator 146, or the power applied is insufficient to allow the first breech lock 144a and the second breech lock 144b to cross one or many
During individual holding structure 166, one or more breech locks are still kept by one or more holding structures, so as to prevent the first respiratory component
Depart from from the second respiratory component.
It can be made up or including following of following according to one or more parts of the blocking mechanism of the present invention：Polymeric material
Or resin, metal or combinations thereof.In certain embodiments, blocking mechanism may include thermoplastic resin or be made from it, example
In makrolon, nylon, polybutylene terephthalate (PBT), polypropylene and acrylonitrile-butadiene-styrene (ABS) (ABS)
Any one or more.In some embodiments, it may be desirable to which one or more assemblies are made with the metal of such as spring steel
(for example, one or more breech locks and/or flexible member), to reduce the size of part.
Fig. 3 A show the partial exploded view of another exemplary breathing component 200 according to the present invention.Fig. 3 B show breathing
The supplement partial exploded view of component 200 for more fully understand in Fig. 3 A hide structure.Exemplary breathing component 200 includes
First respiratory component 220 and the second respiratory component 280.Exemplary first respiratory component 220 includes mouth 230 for disengagable
Mode the first respiratory component 220 is connected to the second respiratory component 280.Mouth 230 includes receiving surface 232, the receiving table
Face has the first axial passage 234 wherein.First projection 236 is arranged on receiving surface 232, and is configured to and size
It is designed to surround the first axial passage 234.Additionally or alternatively, receiving surface 232 can be limited and surrounded
The groove that first axial passage is set.
Exemplary second respiratory component 280 includes mouth 260 releaseably to connect the second respiratory component 280
It is connected to the first respiratory component 220.Mouth 260 includes the second axial passage 262, and the passage is configured to and is dimensioned to work as
When second respiratory component 280 is attached to the first respiratory component 220, the fluid of the first axial passage 234 with the first respiratory component 220
Communicatively set.Second projection 264 is configured to and is dimensioned to surround the second axial passage 262.It is exemplary at some
In embodiment, the first projection 236 is configured to be contained in the second projection 264 that can be generally annular.
First respiratory component and the second respiratory component can each include adjacent with first annular projection and the second annular projection
At least one set coordinates anti-rotation element.Second respiratory component 280 also includes at least one holding structure 266, the knot
Structure may be provided in the second projection 264, be shown around the annular shoulder of the setting of second channel 262.Second respiratory component 280
260 also salable elements 268 of mouth, the potted component can be provided in the inclined surface in the outmost surface of the second projection 264.
Additionally or alternatively, the mouth 230 of the first respiratory component may include the antelabium such as with reference to described by Fig. 2 D
The potted component of seal.Lip seal member may be provided on the receiving surface 232 of the first respiratory component 220.
Breathing component 200 also includes blocking mechanism 240.The blocking mechanism 240 of this exemplary embodiment is attached to first and exhaled
Inhale part 220.Blocking mechanism 240 includes elastic component 242 (being in the exemplary embodiment bowed shape).By breech-block
When structure and the assembling of the first respiratory component, the first breech lock 244a and the second breech lock 244b are inwardly projecting towards the first axial passage 234, make
Obtain them and engage at least one holding structure 266, so as to prevent the first respiratory component 220 from departing from from the second respiratory component 280.The
One breech lock 244a is arranged on the side of axial passage 234, and the opposite side that the second breech lock 244b is arranged on axial passage 234 is (excellent
Selection of land, relative with the first breech lock 244a).
First breech lock 244a and the second breech lock 244b includes bending area, so as to allow each breech lock to surround the first axial passage
234 and first projection 236 (if present) bending.First breech lock 244a and the second breech lock 244b each include having the
One free end 246a1Or 246b1With the second free end 246a2Or 246b2Arm.Similar to the example with reference to described by Fig. 2A-C
Property embodiment, the first breech lock 244a and the second breech lock 244b can intersect near the first free end, and the first free end is available
Make actuator 246.
Exemplary first breech lock 244a and the second breech lock 244b is (preferably, free second by arch elastic component 242
Hold 246a2And 246b2Near) be connected to each other.Elastic component 242 can be attached to the single part of arm, or can be with
Arm is integrally formed.Elastic component 242 is sufficiently flexible, to allow the first breech lock 244a and when to its 246 applying power of actuator
Two breech lock 244b fully deflect and moved away from the first axial passage 234 of the first respiratory component 220, so that blocking mechanism 240
Depart from from the holding structure 166 of the second respiratory component 280.On the other hand, elastic component 242 must be sufficiently resilient, to remove
Its original shape is returned during power.Second free end 246a2And 246b2For example it can be open by being set in every one second free end
To connect, described be open is configured to accommodate and kept the pin 235 of the first respiratory component 220.Therefore, the first breech lock 244a and
Two breech lock 244b can be pivoted around axis 245.
Blocking mechanism 240 can be operated in the way of similar to the operation of blocking mechanism 140.Specifically, when such as figure
Shown in arrow F in 3A, to the first free end 246a on the direction towards another free end1And 246b1At least one of (simultaneously
And, it is preferable that both) applying power when, the first breech lock 244a and the second breech lock 244b are moved away from the first axial passage 234.
Once the first breech lock 244a and the second breech lock 244b are crossed and departed from holding structure 266, the second respiratory component 280 can be from first
Respiratory component 220 departs from.Conversely, ought not to the applying power of actuator 246, or the power applied be insufficient to allow the first breech lock 244a,
When second breech lock 244b crosses one or more holding structures 266, one or more breech locks are still by one or more holding structures
Keep, so as to prevent the first respiratory component from departing from from the second respiratory component.
Mouthfuls 230 may also include groove 238a and 238b, the groove be respectively configured to accommodate and keep the first breech lock 244a and
Second breech lock 244b.In order to which blocking mechanism 240 is attached into mouth 230, pin 235 is inserted to the first breech lock of blocking mechanism 240
In 244a and the second breech lock 244b the second free end 246a2 and 246b2 opening, and by the first breech lock 244a and the second breech lock
In 244b insertion grooves 238a and 238b.Projection 237 and 239 may be provided on mouth 230 for setting and position the first breech lock
244a and the second breech lock 244b.
Fig. 4 shows the partial exploded view of another exemplary breathing component 300 according to the present invention.Exemplary breathing component
300 include the first respiratory component 320 and the second respiratory component 380.Exemplary first respiratory component 320 include mouth 330 for
The first respiratory component 320 is releaseably connected to the second respiratory component 380.Mouth 330 includes receiving surface 332, institute
State receiving surface has the first axial passage 334 wherein, and the first projection 336 is arranged on receiving surface 332, and is constructed
For and be dimensioned to surround the first axial passage 334.Second respiratory component 380 includes mouth 360 for disengagable
Second respiratory component 380 is connected to the first respiratory component 320 by mode.Mouth 360 includes：Second axial passage 362, the passage
It is configured to and is dimensioned to axially logical with first when the second respiratory component 380 is attached into the first respiratory component 320
The fluid flow communication of road 334 is set；Second projection 364, it is configured to and is dimensioned to surround the second axial passage 362.
In some exemplary embodiments, the first projection 336 is configured to be contained in the second projection 364.Second respiratory component 380 is also
Including at least one holding structure 366.
Breathing component 300 also includes the blocking mechanism 340 for being attached to the first respiratory component 320.Specifically, lid can be passed through
Blocking mechanism 340 is remained to the first respiratory component 320 by 350.Blocking mechanism 340 include the first breech lock and the second breech lock 344a and
344b, when by blocking mechanism and the assembling of the first respiratory component, the breech lock is inwardly projecting towards the first axial passage 334 so that
They engage at least one holding structure 366, so as to prevent the first respiratory component 320 from departing from from the second respiratory component 340.Herein
In exemplary embodiment, the first breech lock and the second breech lock 344a and 344b are a parts for the U-shape configuration being made up of elastomeric material.
However, various other shapes of such as V-arrangement or straight sided shape are within the scope of the invention.First breech lock 344a is arranged on axially logical
The side in road 334, and the second breech lock 344b is arranged on the opposite side of axial passage 334 (preferably, with the second breech lock 344b phases
It is right).In this exemplary embodiment, each breech lock has free end 346a or 346b.
Exemplary breech lock 344a and 344b is connected to each other by elastic component 342, the elastic component make diagram U-shaped or
Bracket columnar structure is complete.Elastic component 342 could attach to arm, or can be integrally formed with arm.In the exemplary embodiment, cause
Dynamic device 346 (being shown as button) is arranged on blocking mechanism 340 with breech lock 344a and 344b free end 346a and 346b side phase
To side.Actuator 346 can be connected to breech lock via elongated transition member 347.When blocking mechanism is assembled, transition member
347 can be housed inside in the groove formed by wall 349.Free end 346a and 346b may be structured to cooperate with block piece 348, when
When in the directionf to actuator applying power, the block piece makes breech lock 344a and 344b deflect away from each other.
Exemplary blocking mechanism 340 can be operated as follows.When on the direction shown in arrow F to 346 applying power of actuator,
The inclined side that breech lock 344a and 344b free end 346a and 346b are blocked part 348 is guided away from the first axial passage 334, because
This also make it that breech lock 344a and 344b move away from the first axial passage 334.Once breech lock 344a and 344b are crossed and are departed from guarantor
Structure 366 is held, the second respiratory component 380 can depart from from the first respiratory component 320.Conversely, ought not apply to actuator 346
Power, or the power applied, when being insufficient to allow breech lock 344a, 344b to cross one or more holding structures 366, breech lock is still by one
Or multiple holding structures are kept, so as to prevent the first respiratory component from departing from from the second respiratory component.
Fig. 5 shows another exemplary breathing component 400 according to the present invention.In the exemplary embodiment, breathing group
Part 400 includes malleation personal respiratory protection device.Breathing component 400 includes the first respiratory component 420 (here, clean air source)
With the second respiratory component 480 (here, head-shield).Second respiratory component 480 includes the unstable cover 412 of shape.However, at it
In his exemplary embodiment, cover 412 can be or can include can provide surge protection dimensionally stable headgear or
Rigid headgear.Second respiratory component 480 also include head harness 414, one or more dimension adjustables of the belt so that
The head 416 of user 418 can be conformed to by obtaining its size.The size of cover 412 is designed to extend at least user's head
The front in portion and over top, or extend to whole above-head.
Breather component 400 may also include inlet manifold 402 (being preferably dimensionally stable).Manifold 402 can be such as attached
Detachably supported at multiple points of contact 404 by belt 414.Belt 414 and manifold 402 can pass through suitable mechanical fasteners
Part is fixedly or detachably fixed together, for example location division, intermediate plate, snap-fastener or two parts machanical fastener (e.g., shackle
Fastener).Inlet manifold 402 has the air inlet pipe 406 being in fluid communication with multiple appendixs 407 and 408.Appendix can have one
Or multiple gas outlets, it is at least some facial adjacent with user 418 in the gas outlet.Cover 412 includes being arranged on it
Goggles 436 on front, user is watched by it.
The air inlet pipe 406 of manifold 402 extends through the air inlet openings 438 of headgear 480, and via being attached to air inlet pipe 406
Air hose 424 and clean air source 420 (including breathable air supply source 422) be in fluid communication.Such supply source 422 can
The shapes such as the breathable air source using breathable air pressurized tank, powered air purifying respirator (PAPR) or another offer
Formula.The blocking mechanism 440 of this exemplary embodiment is attached to the second respiratory component 480 for releaseably by first
Respiratory component 420 is connected to the second respiratory component 480.Blocking mechanism 440 may include described in the present invention or shown suitable
Any amount of structure or combination in structure.Preferably, blocking mechanism 440 is arranged near air inlet pipe 406.However, at it
In his exemplary embodiment, blocking mechanism 440 attaches in another location or is attached to the first respiratory component 420.
Fig. 6 shows another exemplary breathing component 500 according to the present invention.In the exemplary embodiment, breathing group
Part 500 includes the part of malleation personal respiratory protection device.Breathing component 500 includes (here, the turbine of the first respiratory component 520
Unit) and the second respiratory component 580 (here, flexible pipe).Such turbine unit generally includes fan, for driving in its shell
The motor of fan, power supply and one or more filters for motor.In operation, surrounding air is drawn into whirlpool by fan
In wheel unit, surrounding air is filtered by one or more filters there, then provides it to and uses via flexible pipe 580
Person.
The blocking mechanism 540 of this exemplary embodiment is attached to the first respiratory component 520 for releaseably
First respiratory component 520 is connected to the second respiratory component 580.Blocking mechanism 540 may include described in the present invention or shown
Suitable construction in any amount of structure or combination.Preferably, blocking mechanism 540 is arranged near escaping pipe 506.So
And, in other exemplary embodiments, blocking mechanism 540 attaches in another location or is attached to the first respiratory component 520.
Therefore, those skilled in the art is evident that, specific illustrative structure disclosed herein, structure,
Details, configuration etc. can in many examples be substituted, change and/or combine.For example, blocking mechanism as described herein can with it is many
Alternative breathing component is planted to be used together.Inventor contemplates all such changes and combined within the scope of the present invention.
Therefore, the scope of the present invention should not necessarily be limited by specific illustrative structure as described herein, and should be retouched by the language of claims
The equivalents of the structure stated and these structures are limited.If in this specification and being incorporated by reference into any of this paper
There is conflict or repugnance between disclosure in file, be then defined by this specification.
Claims (10)
1. one kind breathing component, including：
First respiratory component, first respiratory component includes receiving surface, and the receiving surface has first axially wherein
Passage；
Second respiratory component, second respiratory component includes at least one holding structure and the second axial passage, described second
Axial passage is configured to and is dimensioned to set with the described first axial passage so that described second exhales
Inhale part and the connection of the receiving surface formation sealing of first respiratory component；
The blocking mechanism of first respiratory component is attached to,
Characterized in that,
The blocking mechanism includes elastic component, is arranged in the opposite sides of first axial passage and with towards described the
The first arm and the second arm of the inwardly projecting part of one axial passage and including every in first arm and second arm
The latch actuator of the end of one, near the end of first arm and second arm first arm with it is described
Second arm intersects；
Wherein described first arm can engage at least one described holding structure with second arm, so as to prevent described first from exhaling
Part is inhaled from second respiratory component to depart from；And
Wherein when to the latch actuator applying power, first arm can be from least one described guarantor with second arm
Structure disengaging is held, so as to allow first respiratory component to depart from from second respiratory component.
2. breathing component according to claim 1, wherein second respiratory component also includes annular projection, it is described at least
One holding structure is arranged on the annular projection, and containment member is arranged on the receiving surface and the annular projection
Between.
3. breathing component according to claim 1, wherein first respiratory component and the second respiratory component each include
Anti-rotation element.
4. breathing component according to claim 1, wherein at least one described holding structure includes projection, is recessed or they
Combination.
5. one kind breathing component, including：
First respiratory component, first respiratory component, which has, to be used to releaseably connect first respiratory component
To the mouth of the second respiratory component, the mouth is included therein the receiving surface with the first axial passage, first respiratory region
Part also includes the blocking mechanism for being attached to first respiratory component,
Characterized in that,
The blocking mechanism includes elastic component, is arranged in the opposite sides of first axial passage and with towards described the
The first arm and the second arm of the inwardly projecting part of one axial passage and including every in first arm and second arm
The latch actuator of the end of one, near the end of first arm and second arm first arm with it is described
Second arm intersects；
Wherein when to the latch actuator applying power, first arm can move away from described first with second arm
Axial passage.
6. breathing component according to claim 5, wherein the mouth also includes being arranged on the receiving surface and surrounding
The annular projection of first axial passage.
7. breathing component according to claim 5, wherein the mouth also includes the groove around first axial passage.
8. breathing component according to claim 5, wherein the elastic component includes the flexible support with two openends
Frame, and first arm and second arm include the support of described two adjacent open ends positioned at the flexible carrier
The first opposite side and the second opposite side of frame.
9. breathing component according to claim 5, wherein the latch actuator includes button.
10. breathing component according to claim 5, wherein the elastic component has bowed shape.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161513839P | 2011-08-01 | 2011-08-01 | |
| US61/513,839 | 2011-08-01 | ||
| PCT/US2012/048919 WO2013019764A2 (en) | 2011-08-01 | 2012-07-31 | Respiratory assembly including latching mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103813833A CN103813833A (en) | 2014-05-21 |
| CN103813833B true CN103813833B (en) | 2017-07-14 |
Family
ID=46650917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280036550.8A Expired - Fee Related CN103813833B (en) | 2011-08-01 | 2012-07-31 | Breathing component including blocking mechanism |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP2739362A2 (en) |
| JP (2) | JP6579751B2 (en) |
| KR (1) | KR20140068041A (en) |
| CN (1) | CN103813833B (en) |
| AU (1) | AU2012290229B2 (en) |
| BR (1) | BR112014002143A2 (en) |
| IN (1) | IN2014CN00654A (en) |
| RU (1) | RU2572172C2 (en) |
| WO (1) | WO2013019764A2 (en) |
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|---|---|---|---|---|
| AR095434A1 (en) | 2013-03-15 | 2015-10-14 | Scott Tech Inc | RESPIRATOR FILTER INTERFACE |
| US9814913B2 (en) | 2013-11-15 | 2017-11-14 | 3M Innovative Properties Company | Respirator with floating elastomeric sleeve |
| GB2515847B (en) | 2013-12-04 | 2015-05-27 | Design Reality Ltd | Respirators |
| KR101513859B1 (en) * | 2014-10-17 | 2015-04-21 | 주식회사 산청 | Hood type gas mask |
| JP6172829B1 (en) | 2016-03-09 | 2017-08-02 | 株式会社重松製作所 | Detachable connector |
| DE102017007497A1 (en) * | 2017-08-08 | 2019-02-14 | Daimler Ag | Filter element for an air filter of a motor vehicle and air filter |
| RU206435U1 (en) * | 2021-07-21 | 2021-09-13 | Сергей Владимирович Давыдов | ANTI-AEROSOL MASK |
| GB2623077A (en) * | 2022-10-03 | 2024-04-10 | Avon Polymer Prod Ltd | Respirator |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2013019764A2 (en) | 2013-02-07 |
| JP6579751B2 (en) | 2019-09-25 |
| BR112014002143A2 (en) | 2017-02-21 |
| AU2012290229A1 (en) | 2014-02-20 |
| CN103813833A (en) | 2014-05-21 |
| EP2739362A2 (en) | 2014-06-11 |
| IN2014CN00654A (en) | 2015-04-03 |
| JP2018126547A (en) | 2018-08-16 |
| RU2014103317A (en) | 2015-09-10 |
| JP2014524280A (en) | 2014-09-22 |
| AU2012290229B2 (en) | 2015-11-12 |
| KR20140068041A (en) | 2014-06-05 |
| RU2572172C2 (en) | 2015-12-27 |
| WO2013019764A3 (en) | 2013-12-19 |
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