CN204261226U - The anti-asphyxiator of aviation face shield - Google Patents
The anti-asphyxiator of aviation face shield Download PDFInfo
- Publication number
- CN204261226U CN204261226U CN201420734238.2U CN201420734238U CN204261226U CN 204261226 U CN204261226 U CN 204261226U CN 201420734238 U CN201420734238 U CN 201420734238U CN 204261226 U CN204261226 U CN 204261226U
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- CN
- China
- Prior art keywords
- housing
- control circuit
- pin removal
- face shield
- pressing plate
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- Withdrawn - After Issue
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Abstract
The utility model discloses the anti-asphyxiator of a kind of aviation face shield, comprise water sensitive controller and valve arming mechanism, wherein, valve arming mechanism comprises housing, pressing plate and pin removal, housing is fixed on the guard shield of oxygen mask by a back-up ring, housing is provided with intercommunicating pore, is communicated with this guard shield; Pressing plate is connected with housing by intercommunicating pore screw thread, is also provided with spring between pressing plate and housing, and housing is provided with connector, and pin removal is placed in this connector; Water sensitive controller comprises control circuit and battery, and control circuit is connected with pin removal by wire; Control circuit under aqueous medium environment with battery conducting, for control circuit charging, when the electric current in control circuit reaches preset value, be that pin removal is powered by wire, after pin removal activates, extract from connector, pressing plate moves under spring force, open face shield and extraneous interface channel, oxygen mask is communicated with air by the intercommunicating pore on housing.
Description
Technical field
The utility model relates to aviation face mask art, particularly relates to the anti-asphyxiator of a kind of aviation face shield.
Background technology
The special lifesaving device that anti-asphyxiator is equipped with when being pilot sea (water) territory flying overhead on face shield.Because the impact of the damage of external environment or other factors may cause pilot's loss of consciousness to fall into briny environment after pilot ejection is disembarked, when pilot cannot obtain oxygen from bailout oxygen supply unit, directly can obtain oxygen from outside air by anti-asphyxiator, avoid pilot to cause because of anoxia asphyxia dead situation to occur.
Along with China's marine site strategy advances, it is day by day frequent that various fighter plane performs marine task, also seems very urgent to marine lifesaving demand.The aviation pressure oxygen mask of active service is not equipped with anti-asphyxiator, and very easily occur bailout oxygen supply unit oxygen depletion once pilot ejection is disembarked after stupor, and pilot independently cannot take off face shield, the situation of death by suffocation occurs to cause pilot to occur.Because active service face shield does not have anti-function of suffocating, cause pilot to fly at sea and there is safety problem, can not as far as possible farthest save pilot's life.
Utility model content
The technical problems to be solved in the utility model be overboard for astronaut in prior art after, support the face shield defect that easily causes astronaut to suffocate, a kind of anti-asphyxiator of aviation face shield with anti-function of suffocating be provided.
The utility model solves the technical scheme that its technical problem adopts:
There is provided a kind of aviation face shield anti-asphyxiator, comprise water sensitive controller and valve arming mechanism, wherein, valve arming mechanism comprises housing, pressing plate and pin removal, housing is fixed on the guard shield of oxygen mask by a back-up ring, and housing is provided with intercommunicating pore, is communicated with this guard shield; Pressing plate is connected with housing by intercommunicating pore screw thread, is also provided with spring between pressing plate and housing, and housing is provided with connector, and pin removal is placed in this connector;
Water sensitive controller comprises control circuit and battery, and control circuit is connected with pin removal by wire; Control circuit under aqueous medium environment with battery conducting, for control circuit charging, when the electric current in control circuit reaches preset value, be that pin removal is powered by wire, after pin removal activates, extract from connector, pressing plate moves under spring force, open face shield and extraneous interface channel, oxygen mask is communicated with air by the intercommunicating pore on housing.
Aviation face shield described in the utility model is anti-to suffocate in system, and control circuit and battery are installed on oxygen mask bellows end.
Aviation face shield described in the utility model is anti-to suffocate in system, and valve kickoff mechanism also comprises spacer pin, fixes on the coupling.
Aviation face shield described in the utility model is anti-to suffocate in system, and battery is lithium battery.
The beneficial effect that the utility model produces is: the utility model is by reequiping aviation oxygen face shield, oxygen mask is provided with anti-asphyxiator, comprise water sensitive controller and valve arming mechanism, when falling into the water after stupor is disembarked in pilot ejection, water sensitive controller activates the pin removal in valve arming mechanism after a certain time, pin removal is extracted, oxygen mask is contacted with air, thus prevents from suffocating when independently cannot take off face shield oxygen supply oxygen depletion, pilot and dying.The utility model effectively can improve the lifesaving ability of pilot under complex environment, and simple and reliable for structure, and cost is lower.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the anti-asphyxiator of the utility model embodiment aviation face shield.
Fig. 2 is the circuit diagram of the utility model embodiment control circuit.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the anti-asphyxiator of aviation face shield of the present utility model comprises water sensitive controller and valve arming mechanism two parts, wherein valve arming mechanism comprises housing 1, pressing plate 2 and pin removal 3, housing is fixed on the guard shield of oxygen mask by a back-up ring 5, and housing 1 is provided with intercommunicating pore, and pressing plate 2 is connected with housing 1 by intercommunicating pore, spring 10 is also provided with between pressing plate 2 and housing 1, housing 1 is provided with connector 4, pin removal 6 is fixed on connector 4, makes pressing plate 2 holddown spring 10.
Water sensitive controller comprises control circuit 8 and battery 9, and control circuit 8 is connected by wire 7 with battery 9, and battery 9 can adopt lithium battery.
In an embodiment of the present utility model, control circuit 8 and battery 9 can be installed on oxygen mask bellows end.When under the effect of control circuit after pilot is overboard at aqueous medium with battery conducting, when reaching about 10S when closed, whether control circuit meets water by logic judging circuit is connected, once decision circuitry activates after connecting immediately, and to the capacitor charging in control circuit, when electric current reaches 1A1W5min, powered to pin removal 3 by wire 7, after current activation pin removal 3, pulling pin of pin removal 3 moves downward work.Pin removal 3 works after the delay of 10S, and fully can ensure stupor pilot (working time 2-4S of life vest) under the effect of life vest, its head surfaces, and the seawater that prevents from working too early enters in face shield chamber, causes the situation that pilot drowns.And water sensitive controller is in order to avoid false triggering work, adopt reliable anti-error triggering protection, when control circuit 8 to contact aqueous medium duration with battery 9 lower than 10S time, water sensitive controller can not trigger, and can continue to use, reach activation once duration next time to require, water sensitive controller can excite work again again.、
In an embodiment of the present utility model, as shown in Figure 2, control circuit comprises four parts: electric quantity of power supply detection module, light/seawater detect and reading module, boosting energy-storage module and priming system ignition module.
Specific works principle: electric quantity of power supply detection module is that the lithium battery of 3V is as power supply by rated voltage, need to detect the real work voltage of lithium battery before work, the real work voltage of a comparator to lithium battery can be used to detect, when lithium battery voltage is greater than 2.7V, a green LED indicator lamp D2 of comparator U1 output lights; When lithium battery voltage is greater than 2.7V, a red LED indicator lamp D1 of comparator U1 output lights.Light/seawater detection and reading module, as the core of this circuit, not only control the work correctness of this circuit but also control the supply of power supply energy.When water sensitive electrical isolation switch only in light/seawater detection and reading module is in closure state, power supply energy just can be supplied to boosting energy-storage module and priming system ignition module.Secondly, light/seawater detects and central processing unit in reading module controls priming system and gets angry the time delay of module and export.Only have when central processing unit receives the correct signal of water sensitive electrical isolation switch, delay function is activated, and central processing unit U2, by according to predetermined delay procedure work, completes delay function.Boosting energy-storage module immediately receives the energy input of lithium battery after water sensitive electrical isolation switch closes, by the boosting loop of therein by the 3V boost in voltage of lithium battery to 20V, simultaneously with 20V voltage for storage capacitor charges, the charging interval is not more than 1s.Priming system gets angry module, requires function singleness, reliable operation as the Executive Module in this circuit, high withstand voltage can be used and the large power-type MOSFET pipe of On current as electronic switch, improve the reliability of circuit.
After the work extraction downwards of pulling pin of pin removal 3 is pulled pin, pull pin and to extract from connector 4, because housing 1 is fixed on the guard shield of oxygen mask under the effect of back-up ring 5, spring 10 original state is compressive state, pull pin after extracting from connector 4, pressing plate 2 under the spring-force driven dual of spring 10 to left movement, thus open oxygen mask chamber and extraneous interface channel, be connected with air by the intercommunicating pore on housing 1, prevent pilot from occurring the situation of suffocating because of the oxygen depletion in oxygen device bottle.Spacer pin 6 is fixed on connector 4, deviates from face shield accidental injury pilot play position-limiting action to preventing pressing plate 2.
Aviation face shield of the present utility model anti-asphyxiator product structure is simple, reliability is higher, cost is lower, and employing intelligentized control method, automaticity is high, carries out any operation and control gets final product automatic operation without the need to pilot to it, and therefore practicality is better, be easy to apply, there is larger practical value.Be mainly reflected in the following aspects:
a) adopt priming system as freeing power source
The anti-asphyxiator of face shield installs insensitiveness priming system and pin removal, the sealing device on mask body is freed by pin removal, sealing device is separated with mask body, make face shield inner chamber and ambient atmosphere UNICOM, thus ensure that pilot can supplement oxygen needed for self by ambient atmosphere after overboard, and asphyxiant situation occurs because of anoxic to there will not be pilot.
b) smart circuit control system is adopted
Control priming system pin removal by smart circuit control system, after pilot is overboard, water sensitive battery is activated after being judged by intelligent logical, and to capacitor charging, after control system postpones 5-10S, pin removal normally works to excite igniting to ensure.Pin removal works after the delay of 5-10S, and fully can ensure stupor pilot (working time 2-4S of life vest) under the effect of life vest, its head surfaces, and the seawater that prevents from working too early enters in face shield chamber, causes the situation that pilot drowns.
c) lightweight and General design is adopted
Adopt lightweight Miniaturization Design to anti-asphyxiator, make its weight be not more than 60g, not only lightweight, volume is little, and adopts modularized design after this device of increase, can not affect the property indices of face shield.
This anti-asphyxiator can use on all face shields of active service, and enters minimum to the change of active service face shield, can not affect the key property of face shield, substantially increases the versatility of this device on face shield.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (4)
1. the anti-asphyxiator of aviation face shield, it is characterized in that, comprise water sensitive controller and valve arming mechanism, wherein, valve arming mechanism comprises housing, pressing plate and pin removal, housing is fixed on the guard shield of oxygen mask by a back-up ring, and housing is provided with intercommunicating pore, is communicated with this guard shield; Pressing plate is connected with housing by intercommunicating pore screw thread, is also provided with spring between pressing plate and housing, and housing is provided with connector, and pin removal is placed in this connector;
Water sensitive controller comprises control circuit and battery, and control circuit is connected with pin removal by wire; Control circuit under aqueous medium environment with battery conducting, for control circuit charging, when the electric current in control circuit reaches preset value, be that pin removal is powered by wire, after pin removal activates, extract from connector, pressing plate moves under spring force, open face shield and extraneous interface channel, oxygen mask is communicated with air by the intercommunicating pore on housing.
2. the anti-system of suffocating of aviation face shield according to claim 1, it is characterized in that, control circuit and battery are installed on oxygen mask bellows end.
3. the anti-asphyxiator of aviation face shield according to claim 1, it is characterized in that, valve kickoff mechanism also comprises spacer pin, fixes on the coupling.
4. the anti-asphyxiator of aviation face shield according to claim 1, is characterized in that, battery is lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420734238.2U CN204261226U (en) | 2014-11-28 | 2014-11-28 | The anti-asphyxiator of aviation face shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420734238.2U CN204261226U (en) | 2014-11-28 | 2014-11-28 | The anti-asphyxiator of aviation face shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204261226U true CN204261226U (en) | 2015-04-15 |
Family
ID=52796127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420734238.2U Withdrawn - After Issue CN204261226U (en) | 2014-11-28 | 2014-11-28 | The anti-asphyxiator of aviation face shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204261226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399200A (en) * | 2014-11-28 | 2015-03-11 | 航宇救生装备有限公司 | Suffocation proof device for aviation mask |
-
2014
- 2014-11-28 CN CN201420734238.2U patent/CN204261226U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399200A (en) * | 2014-11-28 | 2015-03-11 | 航宇救生装备有限公司 | Suffocation proof device for aviation mask |
| CN104399200B (en) * | 2014-11-28 | 2017-07-11 | 航宇救生装备有限公司 | aviation mask anti-suffocation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150415 Effective date of abandoning: 20170711 |
|
| AV01 | Patent right actively abandoned |