CN203677780U - Adjustable oxygen supply mechanism of oxygen self-rescuer - Google Patents
Adjustable oxygen supply mechanism of oxygen self-rescuer Download PDFInfo
- Publication number
- CN203677780U CN203677780U CN201320871460.2U CN201320871460U CN203677780U CN 203677780 U CN203677780 U CN 203677780U CN 201320871460 U CN201320871460 U CN 201320871460U CN 203677780 U CN203677780 U CN 203677780U
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- China
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- valve
- spool
- valve element
- supply mechanism
- reducing valve
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- Expired - Fee Related
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Abstract
The utility model provides an adjustable oxygen supply mechanism of an oxygen self-rescuer. The adjustable oxygen supply mechanism needs to solve the problem that the output oxygen pressure cannot be adjusted; an air outlet is exposed, and foreign matters are likely to block a pressure reducing valve. The adjustable oxygen supply mechanism is characterized in that the valve element of the pressure reducing valve is a rotating body taking the shape of a raised character; the great circle part of the valve element serves as the outer side of the valve element and faces to the air outlet of the valve; the small circle part of the valve element serves as the inner side of the valve element and faces to the air inlet channel of the valve; a conical spring is arranged on the inner side of the valve element and between the valve element and a valve body forming the air inlet channel; a blind hole is formed in the center of circle of the outer side of the valve element, and the inner end of a pull rod is inserted into the blind hole; the big mouth of a conical rubber protecting jacket sleeves the outer shell of the pressure reducing valve, and the small mouth of the conical rubber protecting jacket sleeves the pull rod. The adjustable oxygen supply mechanism has the benefits that the amount of output oxygen is accurately and stably adjusted to meet the demands of different people; the sealing protecting jacket is added, and the reliability of the pressure reducing valve is increased.
Description
Technical field
The utility model relates to a kind of isolation type compressed oxygen self-rescuer, is the oxygen mechanism of isolation type compressed oxygen self-rescuer specifically.
Background technology
The oxygen self-rescuer of use is at present, opens oxygen cylinder switch, and high pressure oxygen first flows to pressure-reducing valve from oxygen cylinder, after decompression, flows to air bag, pneumostome tool.The oxygen pressure of pressure-reducing valve output regulates by hand push button, but adjust flux and time are uncontrollable, and therefore current oxygen self-rescuer oxygen flow consumption is very fast, can not meet the personnel's of wearing user demand.Secondly, the gas outlet of pressure-reducing valve is exposed, and user's saliva or cooling water etc. likely enters pressure-reducing valve, stops up pressure-reducing valve.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of adjustable oxygen supply mechanism of oxygen self-rescuer.
The purpose of this utility model is achieved in that it comprises pressure-reducing valve, is characterized in that: the spool of pressure-reducing valve is the rotary body of convex shape; The outside that the large circular portion of spool is spool, towards the gas outlet of valve; The inboard that the little circular portion of spool is spool, towards the inlet channel of valve; Volute spring is arranged on spool inboard, spool and forming between the valve body of inlet channel, and the direction of volute spring is that its large circular portion is on valve body; Circle centre position in spool outside has a blind hole, and blind hole is inserted in the inner end of dead man, and the outer end of dead man is handle; The large muzzle of cone rubber protective sleeve is on pressure-reducing valve shell body, and the osculum of cone rubber protective sleeve is enclosed within on dead man, and cone rubber protective sleeve, by the sealing of pressure-reducing valve gas outlet, prevents that saliva or cooling water etc. from entering pressure-reducing valve, avoids pressure-reducing valve to break down.While needing large amount of oxygen when use, stir arbitrarily dead man to the direction of pressure-reducing valve in the scope of 45 degree, compression volute spring, promotes spool and retreats, and gas outlet is opened greatly; Unclamp dead man, spring reset, promotes valve core reset.
Compared with prior art, good effect of the present utility model is: go out amount of oxygen and regulate accurate stable, meet different human needs; Increase seal protection cover, improved the reliability of pressure-reducing valve.
Accompanying drawing explanation
Further illustrate the utility model below in conjunction with accompanying drawing.
Fig. 1 is schematic diagram of the present utility model.
The specific embodiment
The spool 5 of pressure-reducing valve 4 is the rotary body of convex shape; The outside that the large circular portion of spool is spool, towards the gas outlet 9 of valve; The inboard that the little circular portion of spool is spool, towards the inlet channel of valve; Volute spring 6 is arranged on spool inboard, spool and forming between the valve body 8 of inlet channel 7, and the direction of volute spring is that its large circular portion is on valve body; Circle centre position in spool outside has a blind hole, and blind hole is inserted in the inner end of dead man 2, and the outer end of dead man is handle 1; The large muzzle of cone rubber protective sleeve 3 is on pressure-reducing valve shell body 4, and the osculum of cone rubber protective sleeve is enclosed within on dead man, and cone rubber protective sleeve seals pressure-reducing valve, prevents that saliva or cooling water etc. from entering pressure-reducing valve, avoids pressure-reducing valve to break down.While needing large amount of oxygen when use, stir arbitrarily dead man to the direction of pressure-reducing valve in the scope of 45 degree, compression volute spring, promotes spool and retreats, and gas outlet is opened greatly; Unclamp dead man, spring reset, promotes valve core reset.
Claims (1)
1. an adjustable oxygen supply mechanism for oxygen self-rescuer, it comprises pressure-reducing valve, it is characterized in that: the spool of pressure-reducing valve is the rotary body of convex shape; The outside that the large circular portion of spool is spool, towards the gas outlet of valve; The inboard that the little circular portion of spool is spool, towards the inlet channel of valve; Volute spring is arranged on spool inboard, spool and forming between the valve body of inlet channel, and the direction of volute spring is that its large circular portion is on valve body; Circle centre position in spool outside has a blind hole, and blind hole is inserted in the inner end of dead man, and the outer end of dead man is handle; The large muzzle of cone rubber protective sleeve is on pressure-reducing valve shell body, and the osculum of cone rubber protective sleeve is enclosed within on dead man.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871460.2U CN203677780U (en) | 2013-12-27 | 2013-12-27 | Adjustable oxygen supply mechanism of oxygen self-rescuer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871460.2U CN203677780U (en) | 2013-12-27 | 2013-12-27 | Adjustable oxygen supply mechanism of oxygen self-rescuer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203677780U true CN203677780U (en) | 2014-07-02 |
Family
ID=50999749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320871460.2U Expired - Fee Related CN203677780U (en) | 2013-12-27 | 2013-12-27 | Adjustable oxygen supply mechanism of oxygen self-rescuer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203677780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013622A (en) * | 2017-12-14 | 2019-07-16 | 德尔格安全股份两合公司 | Breathing bag, system, circulatory and respiratory protection instrument and method |
| KR102402674B1 (en) * | 2021-11-02 | 2022-05-30 | 주식회사 케이디펜스 | Flow regulating device for breathing apparatus |
-
2013
- 2013-12-27 CN CN201320871460.2U patent/CN203677780U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013622A (en) * | 2017-12-14 | 2019-07-16 | 德尔格安全股份两合公司 | Breathing bag, system, circulatory and respiratory protection instrument and method |
| CN110013622B (en) * | 2017-12-14 | 2021-02-09 | 德尔格安全股份两合公司 | Breathing bag, system, cyclic breathing protection apparatus and method |
| US11160942B2 (en) | 2017-12-14 | 2021-11-02 | Dräger Safety AG & Co. KGaA | Breathing bag, system comprising a breathing bag and a dispensing valve unit, closed-circuit respirator as well as process for mounting a system comprising a breathing bag and a dispensing valve unit in a closed-circuit respirator |
| KR102402674B1 (en) * | 2021-11-02 | 2022-05-30 | 주식회사 케이디펜스 | Flow regulating device for breathing apparatus |
| WO2023080439A1 (en) * | 2021-11-02 | 2023-05-11 | 주식회사 케이디펜스 | Flow rate control device for breathing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20181227 |