CN107773860A - A kind of new steam supply valve of the integration environment air by-pass function - Google Patents
A kind of new steam supply valve of the integration environment air by-pass function Download PDFInfo
- Publication number
- CN107773860A CN107773860A CN201711148267.5A CN201711148267A CN107773860A CN 107773860 A CN107773860 A CN 107773860A CN 201711148267 A CN201711148267 A CN 201711148267A CN 107773860 A CN107773860 A CN 107773860A
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- Prior art keywords
- air
- steam supply
- supply valve
- pressure
- diaphragm
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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
- 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
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/02—Valves
- A62B9/022—Breathing demand regulators
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- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The application belongs to positive-pressure air respirator steam supply valve accessories field,Disclose a kind of new steam supply valve of the integration environment air by-pass function,It can apply to self-supporting open type scuba diving and positive-pressure type firefighting air respirator,Breaching traditional steam supply valve does not have surrounding air bypass function to design this convention,Part solves this short urgent problem of usage time in current air respiratorresuscitator use,The application supplies the switch of valve gear in the side of steam supply valve,The conversion between surrounding air bypass function and steam supply valve energy control for need function can quickly be realized,Entered using positive-pressure air respirator be not suitable for breathing environment before or after leaving,Surrounding air bypass function state is transformed into by the switch on steam supply valve,Use environment air bypass apparatus provides the surrounding air suitably breathed to the wearer of respirator,Source of the gas can greatly be saved,And effectively extend the usage time of air respiratorresuscitator,Improve the operating efficiencies such as rescue.
Description
Technical field
The application belongs to positive-pressure air respirator steam supply valve accessories field, more particularly to a kind of the integration environment air by-pass
The new steam supply valve of function, it can apply to self-supporting open type scuba diving and positive-pressure type firefighting air respirator and supply
Air valve.
Background technology
Positive-pressure air respirator is the system of self-supporting open type scuba diving and positive-pressure type firefighting air respirator
Claim, positive-pressure air respirator be for helping user in anoxic, or can be just in the environment of toxic gas and smog
The instrument of normal breathing air.The operation principle of positive-pressure air respirator be compressed air by depressurizing twice, will be depressurized to
It is adapted to the gas of human body respiration to be sent into mask, for human body respiration.Generally, positive-pressure air respirator mainly includes backboard, decompression
The parts such as device, gas cylinder, steam supply valve and mask.Wherein, steam supply valve realizes the air capacity for breathing and needing by user, automatically on demand
The function of being supplied to user.
However, current positive-pressure air respirator steam supply valve can only realize that energy control for need function and middle pressure bypass constant current supply
Airway dysfunction, both functions be all using compressed air as source of the gas, and it is middle pressure bypass constant current supply function simply in energy control for need
Function breaks down or eyeglass needs just use during demisting, will not press bypass constant current supply function in use under normal circumstances,
Therefore, both functions can not play a part of extending usage time.
And a subject matter present in current air respiratorresuscitator use is that usage time is short, air respiratorresuscitator it is normal
What it is with configuration is 6.8 liters or 9 liter of 30 MPa gas cylinder, and in the big load operation of user, usage time does not surpass substantially
1 hour is spent, this has largely effected on the completion of the hot jobs such as rescue.
The content of the invention
For deficiencies of the prior art, it is an object of the invention to provide a kind of the integration environment air by-pass work(
The new steam supply valve of energy.
To realize object above, a kind of new steam supply valve of the integration environment air by-pass function provided by the invention, break through
Traditional steam supply valve does not have the surrounding air bypass function to design this convention, adopts the following technical scheme that：
A kind of new steam supply valve of the integration environment air by-pass function, including：Middle pressure intake interface, main casing, cover body or bonnet,
Core assembly, minute-pressure drive component, surrounding air bypass cock component and diaphragm substrate open and close valve, medium pressure intake interface with
Core assembly connects, and the position for avoiding middle pressure intake interface in the outer part of main casing is provided with surrounding air bypass cock component,
Minute-pressure drive component is installed below main casing, cover body or bonnet, minute-pressure driving group are installed below minute-pressure drive component
Part includes diaphragm, and the diaphragm includes diaphragm substrate, and the core assembly passes through leverage to diaphragm, it is characterised in that：Institute
State and diaphragm substrate open and close valve is provided with diaphragm substrate, the diaphragm substrate open and close valve includes that valve block can be opened and closed, empty by environment
Gas bypass cock component can with driven opening/closing valve block, can make on diaphragm substrate open one can be air come in and go out passage,
This passage can be closed.
Herein described surrounding air bypass cock is located at the position that user of service can see.
The new steam supply valve of above-mentioned the integration environment air by-pass function can apply to self-supporting open type compressed air breathing
Device and positive-pressure type firefighting air respirator.
A kind of new steam supply valve of the integration environment air by-pass function of the application, the switch of the device is the one of steam supply valve
Side, the conversion between surrounding air bypass function and steam supply valve energy control for need function can be quickly realized, use positive-pressure type air
Respirator enters be not suitable for before breathing environment or leave such environment after, environment sky is transformed into by the switch on steam supply valve
Gas bypass function state, use environment air bypass apparatus provide the ring suitably breathed to the wearer of positive-pressure air respirator
Border air, source of the gas so can be greatly saved, and effectively extend the usage time of air respiratorresuscitator, improve the work such as rescue
Efficiency.In addition, surrounding air bypass cock is located at the position that user of service can see, it is more convenient to use quick.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is a kind of novel positive pressure formula air respiratorresuscitator steam supply valve structural representation of the integration environment air by-pass function；
Fig. 2 is a kind of another angled arrangement of the novel positive pressure formula air respiratorresuscitator steam supply valve of the integration environment air by-pass function
Schematic diagram；
Fig. 3 is a kind of novel positive pressure formula air respiratorresuscitator steam supply valve profile of the integration environment air by-pass function；
Fig. 4 is cover body or the profile of bonnet 1；
Fig. 5 is cover body or the dimensional structure diagram of bonnet 1；
Fig. 6 is main casing profile；
Fig. 7 is main casing dimensional structure diagram 1；
Fig. 8 is main casing dimensional structure diagram 2；
Fig. 9 is core assembly profile；
Figure 10 is core assembly dimensional structure diagram；
Figure 11 is minute-pressure drive component profile；
Figure 12 is minute-pressure drive component dimensional structure diagram；
Figure 13 is surrounding air bypass cock component partial cross sectional views；
Figure 14 is surrounding air bypass cock component closed mode dimensional structure diagram；
Figure 15 is surrounding air bypass cock component opening dimensional structure diagram；
Figure 16 is outlet valve profile；
Figure 17 is outlet valve dimensional structure diagram；
1- cover bodies or bonnet；Air-vent below 1001- cover bodies or bonnet；
2- main casings；The groove of diaphragm is installed on 2001- main casings；Intake interface is pressed in 2002-；
3- core assemblies；301- cylinder bodies, 302- cylinder bodies seal O-ring, 303- pistons, 304- pistons lower section O-ring seal, 305-
Taper soft seal body, 306- piston reset springs；3011- cylinder body air admission holes；
4- minute-pressure drive components；401- malleations lever, 402- diaphragms, 403- diaphragms substrate, the positive pressing springs of 404-, 405- malleation thick sticks
Pole socket；4031- plastics guide rods；
5- outlet valves；51- expiration valve block, 52- expiration valve spring, 53- expiration valve spring retainers；
6- surrounding air bypass cock components；61- push rods, 62- push rods guide holder, 63- push rods back-moving spring, 64- camshafts,
641- cams, 65- rotary shafts, 66- toggle switches, 67- switch screens spring, 68- switch seal rings, 69- rotary shaft limiting blocks
Circle；
Output channel ZY is pressed in 7-；
8- minute-pressure Vomitories WY.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
As shown in Fig. 1 ~ Figure 17, a kind of new steam supply valve of the integration environment air by-pass function, including：Middle pressure intake interface
2002nd, cover body or bonnet 1, main casing 2, core assembly 3, minute-pressure drive component 4, surrounding air bypass cock component 6 and expiration
Valve 5.In the present embodiment, the design of diaphragm substrate open and close valve specifically uses the scheme of expiration valve arrangement, wherein opening and closing valve block etc.
It is same as valve block of being exhaled in outlet valve.
The core assembly 3, in main casing 2 in the hole of middle pressure intake interface 2002 side, opposite side peace
Equipped with surrounding air bypass cock component 6, the top of main casing 2 is socket, and the hole among socket is minute-pressure Vomitory 8, minute-pressure
The oronasal mask inner chamber of Vomitory 8 and full facepiece mask is led directly to, and the side of socket is the position that steam supply valve supplies to full facepiece mask, supplies position
It is middle pressure output channel 7 in putting, the minute-pressure Vomitory 8 is isolated with middle pressure output channel 7, pacified in the lower section of main casing 2
Equipped with minute-pressure drive component 4, minute-pressure Vomitory 8 is connected with minute-pressure drive component 4, the lower section installation of minute-pressure drive component 4
There is outlet valve 5, cover body or bonnet 1 are installed below outlet valve 5, cover body or bonnet 1 are enclosed on the outside of main casing 2.
The core assembly 3, including cylinder body 301, piston 303, taper soft seal body 305 and piston reset spring 306；
The piston 303 is arranged in cylinder body 301, and the lower section of piston 303 is provided with O-ring seal 304 and forms sealing with cylinder body 301, living
The top of plug 303 includes taper soft seal body 305, and the top of taper soft seal body 305 sets piston reset spring 306, piston
The top of back-moving spring 306 is pressed on the inwall of main casing 2, normal condition lower piston 303 in the presence of piston reset spring 306,
Taper soft seal body 305 is set to be sealed with cylinder body；Two O-ring seals 302 up and down that cylinder body 301 is covered by outside ensure with
The sealing of main casing 2, the centre of cylinder body are provided with air admission hole 3011, and the compressed air for therefrom pressing intake interface 2002 to come passes through
Air admission hole 3011 enters cylinder body, and lower section and the lever 401 of piston 303 are connected by bearing pin, when piston 303 is by lower section malleation
The pressure of the gradual increase or reduction of lever 401 and when forming pressure differential with the spring force of piston reset spring 306, taper is soft
Seal 305 is gradually disengaged or moved closer to sealing with cylinder body 301, and compressed air presses output channel 7 in entering and increases supply
Air demand is measured or gradually decreased until stopping supplying, so as to complete the opening and closing function of core assembly.
The minute-pressure drive component 4 includes malleation lever 401 and malleation lever seat 405, positive pressing spring 404, the and of diaphragm 402
Diaphragm substrate 403；The diaphragm 402 is arranged on the groove 2001 on main casing 2, and diaphragm 402 includes flexible glue part and plastics
Diaphragm substrate 403, diaphragm 402 are to include substrate and centre by the 403 encapsulated shaping of plastic film substrate, diaphragm substrate 403
Plastics guide rod 4031, positive pressing spring 404 is enclosed on plastics guide rod 4031, is pressed in below on main casing 2, heads on rotation above
Nut on plastics guide rod top；The malleation lever seat 405 is screwed on inner housing 2, malleation lever 401 with
Malleation lever seat 405 is coupled by the rotating shaft in left side, and this rotating shaft is fixed, as the fixed pivot of malleation lever 401, malleation
Lever 401 and piston 303 are coupled by right side rotating shaft, and this rotating shaft is linkage rotating shaft, receiving piston back-moving spring at the rotating shaft that links
The effect of 306 downward forces passed over by piston 303, malleation lever 401 is at afterbody circular arc position by positive pressing spring 404
The effect of the upward power passed over by diaphragm substrate 403, the two power driving malleation lever 401 are inverse around fixed pivot
Hour hands are upward or move downward clockwise, and atmospheric pressure, which is applied to diaphragm, to be play a part of to offset malleation spring force.
The outlet valve 5 includes expiration valve block 51, expiration valve spring 52 and expiration valve spring retainer 53, the expiration valve block 51
In the lower section of diaphragm substrate 403, the thin bar among expiration valve block 51 is inserted on diaphragm substrate 403 to be played in plastics guide rod endoporus
The effect of guiding, expiration valve spring 52 is in the lower section of expiration valve block 51 and press against expiration valve block 51, the lower section of expiration valve spring 52
On expiration valve spring retainer 53, and expiration valve spring retainer is connected and fixed with diaphragm substrate, ensures putting for expiration valve spring retainer
The basal plane for putting spring is consistent with the distance of diaphragm substrate.
The surrounding air bypass cock component 6 includes toggle switch 66, rotary shaft 65, switch screens spring 67, switch
The spacing back-up ring 69 of sealing ring 68, rotary shaft, camshaft 64, cam 641, push rod 61, push rod back-moving spring 63, push rod guide holder
62。
The toggle switch 66 is arranged on the outside of main casing 2, in the right opposite position of middle pressure inlet suction port 2002, switch
Screens spring 67 is pressed in the counterbore of toggle switch 66 on step, and rotary shaft 65 is cased with switch seal ring 68, and rotary shaft 65 is passed through and opened
Behind hole on outpost of the tax office position spring 67, the interstitial hole of toggle switch 66 and main casing 2, fixation is blocked with the spacing back-up ring 69 of rotary shaft, its
Middle rotary shaft 65 has spline fitted with the interstitial hole of toggle switch 66, and rotary shaft 65 is connected by key mapping with camshaft 64, camshaft
64 are fixed by the fixed seat of camshaft on main casing 2, and fixed seat of camshaft has an opening neck, and camshaft 64 is stuck in
In neck, the cam 641 for being arranged on left end is included in camshaft 64, the left side of camshaft 64 is provided with push rod 61, push rod is multiple
The position top of spring 63 press against push rod 61, and lower section is pressed on push rod guide holder 62, and push rod 61 is by before and after on push rod guide holder 62
Guide pillar among two guide pin bushings and push rod back-moving spring 63 is completed to be oriented to, in the presence of the cam 641 and back-moving spring 63 on
Lower motion, drive rotary shaft 65, camshaft 64, cam 641 to rotate by stirring toggle switch 66, realize the downward ejection of push rod
Two actions are resetted with upward, toggle switch 66 is in the open position during ejection, and toggle switch 66 is in the closed position during reset,
Realize the function of surrounding air bypass cock component 6.
The lower section of the push rod 61 is diaphragm 402 and outlet valve 5, when toggle switch 66 is in the open position, push rod
61 push up downwards expiration valve block 51, disengage it from the certain distance of diaphragm substrate 403, and now piston 303 is in sealing with cylinder body 301
State, user can pass through the gap between minute-pressure Vomitory 8, expiration valve block 51 and diaphragm substrate 403, cover body or bonnet 1
Under venthole 1001, you can direct breathing environment air, realize surrounding air bypass function；
When toggle switch 66 is in the closed position, push rod 61 resets upwards, returns to the top, push rod 61 is away from the He of diaphragm 402
Outlet valve 5, expiration valve block 51 seal in the presence of the spring of rear with diaphragm substrate 403, and push rod 61 does not affect steam supply valve yet
The operation of diaphragm 402 during normal energy control for need, surrounding air bypass function is closed, and is transformed into the normal supply of steam supply valve simultaneously
State.
Surrounding air bypass function and steam supply valve energy control for need function can be quickly realized by putting through one action of switch
Between conversion.
The new steam supply valve of the integration environment air by-pass function described in the present embodiment can apply to self-supporting open type compression
Air respiratorresuscitator and positive-pressure type firefighting air respirator.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (3)
1. a kind of new steam supply valve of the integration environment air by-pass function, including：It is middle pressure intake interface, main casing, cover body or after
Lid, core assembly, minute-pressure drive component, surrounding air bypass cock component and diaphragm substrate open and close valve, medium pressure air inlet connecting
Mouth connects with core assembly, and the position for avoiding middle pressure intake interface in the outer part of main casing is provided with surrounding air bypass cock group
Part, minute-pressure drive component is installed below main casing, cover body or bonnet, minute-pressure driving are installed below minute-pressure drive component
Component includes diaphragm, and the diaphragm includes diaphragm substrate, and the core assembly passes through leverage to diaphragm, it is characterised in that：
Diaphragm substrate open and close valve is provided with the diaphragm substrate, the diaphragm substrate open and close valve includes that valve block can be opened and closed, and passes through environment
Air by-pass switch module can with driven opening/closing valve block, can make on diaphragm substrate open one can be air come in and go out passage,
This passage can also be closed.
2. the new steam supply valve of the integration environment air by-pass function according to claim 1, it is characterised in that the environment
Air by-pass switch is positioned at the position that user of service can see.
3. the new steam supply valve of the integration environment air by-pass function as claimed in claim 1 or 2 is applied to self-supporting open type pressure
Contracting air respiratorresuscitator and positive-pressure type firefighting air respirator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148267.5A CN107773860A (en) | 2017-11-17 | 2017-11-17 | A kind of new steam supply valve of the integration environment air by-pass function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148267.5A CN107773860A (en) | 2017-11-17 | 2017-11-17 | A kind of new steam supply valve of the integration environment air by-pass function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107773860A true CN107773860A (en) | 2018-03-09 |
Family
ID=61432010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711148267.5A Pending CN107773860A (en) | 2017-11-17 | 2017-11-17 | A kind of new steam supply valve of the integration environment air by-pass function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107773860A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114432608A (en) * | 2021-12-30 | 2022-05-06 | 南京正泽科技股份有限公司 | Air-breathing gas supply valve with bypass and forced exhaust functions and use method thereof |
-
2017
- 2017-11-17 CN CN201711148267.5A patent/CN107773860A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114432608A (en) * | 2021-12-30 | 2022-05-06 | 南京正泽科技股份有限公司 | Air-breathing gas supply valve with bypass and forced exhaust functions and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180309 |