CN103845822A - Pressure reducer residual pressure alarm for emergency escape breathing devices - Google Patents
Pressure reducer residual pressure alarm for emergency escape breathing devices Download PDFInfo
- Publication number
- CN103845822A CN103845822A CN201210511778.XA CN201210511778A CN103845822A CN 103845822 A CN103845822 A CN 103845822A CN 201210511778 A CN201210511778 A CN 201210511778A CN 103845822 A CN103845822 A CN 103845822A
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- valve body
- pressure
- piston
- inner chamber
- alarm
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Abstract
The invention relates to a pressure reducer residual pressure alarm for emergency escape breathing devices, which comprises a valve body, a piston, which comprises a piston rod and a piston head, is arranged in the cavity of the valve body, the piston head of the piston is arranged close to the left end of the cavity of the valve body, the alarm also comprises a high-pressure tube connector for connection with a compressed air cylinder of an emergency escape breathing device, the high-pressure tube connector communicates with the left end of the cavity of the valve body, the cavity of the valve body is provided with a limit passage, the right end of the piston rod is slidably and tightly fitted in the limit passage, the right end of the limit passage is connected with a connector for connection with the low-pressure air output passage of a pressure reducer, the central axis of the piston rod is provided with an air through hole, the inner wall of the limit passage is provided with a warning air supply passage which communicates with the cavity of the valve body, and a whistle which communicates with the center of the valve body is arranged on the valve body. The pressure reducer residual pressure alarm has the characteristics of compact structure, high warning sound, little air consumption and the like, warning pressure can be regulated, a locking cap is used for fixing the pressure reducer residual pressure alarm after regulation, and the performance is stable.
Description
Technical field
The present invention relates to a kind of Emergency Escape Breathing Device, specifically a kind of pressure reducer overbottom pressure alarm of Emergency Escape Breathing Device.
Background technology
The overbottom pressure alarm of the pressure reducer of Emergency Escape Breathing Device, in the time that the air of gas cylinder group is about to use up, is withdrawn alarm signal for fireman provides.Traditional overbottom pressure alarm arrangement complexity, causes overbottom pressure to be reported to the police inaccurate, has affected normal use.
Summary of the invention
In order to address the above problem, the invention provides a kind of overbottom pressure alarm of pressure reducer of simple in structure, the good Emergency Escape Breathing Device of reliability.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
The present invention is a kind of pressure reducer overbottom pressure alarm of Emergency Escape Breathing Device, comprise valve body, in the inner chamber of valve body, be provided with piston, piston comprises piston rod and chock plug, the chock plug of piston arranges adjacent to the inner chamber left end of valve body, on the chock plug of piston, be provided with the O type circle with the bore seal of valve body, alarm also includes the high-pressure pipe connector that connects Emergency Escape Breathing Device compressed air bottle, high-pressure pipe connector communicates with the inner chamber left end of valve body, inner chamber at valve body is provided with limit channels, limit channels coordinates with the right part slipper seal of piston rod, the right part of limit channels is connected with the connector of the low-pressure gas output channel for connecting pressure reducer, on the central axis of piston rod, be provided with vent hole, be provided with the warning plenum duct communicating with the inner chamber of valve body at the inwall of limit channels, communicate with the middle part of valve body, on valve body, be provided with mouthpiece.
Further improvement of the present invention is: on the piston rod of piston, resilient sleeve is provided with the spring that axial force is provided for piston.
Further improvement of the present invention is: be provided with the adjusting pad for adjusting spring force at upper cover of piston rod.
Further improvement of the present invention is: when gas approaches while being finished, the chock plug of piston is moved to the left to the inner chamber left end place of valve body, now the gas in limit channels enters the inner chamber of valve body by warning plenum duct, and then enter mouthpiece, mouthpiece is sent be not less than the chimes of doom of 80dB, remind user's gas to be about to be finished.
The invention has the beneficial effects as follows: the overbottom pressure alarm of the pressure reducer of Emergency Escape Breathing Device of the present invention, for positive-pressure type firefighting air respirator, for providing, fireman withdraws signal, when gas approaches while being finished, chock plug is moved to the left to the inner chamber left end place of valve body, now the gas in limit channels enters the inner chamber of valve body by warning plenum duct, and then enter mouthpiece, mouthpiece is sent be not less than the chimes of doom of 80dB, remind user's gas to be about to be finished, adjustable alarm pressure of the present invention, fixes stable performance with locking cap after setting.
The present invention has the features such as compact conformation, warning volume is high, consumption gas is few, and agent structure adopts aluminum alloy materials, and intensity is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with drawings and Examples, the present invention is described in further detail, this embodiment, only for explaining the present invention, does not form and limits protection scope of the present invention.
As shown in Fig. 1, the present invention is a kind of pressure reducer overbottom pressure alarm of Emergency Escape Breathing Device, comprise valve body 1, in the inner chamber of described valve body 1, be provided with piston 2, described piston 2 comprises piston rod 3 and chock plug 4, on the piston rod 3 of described piston 2, resilient sleeve is provided with the spring 12 that axial force is provided for described piston, on described piston rod 3, cover is provided with the adjusting pad 13 for adjusting described spring 12 elastic force, the chock plug 4 of described piston 2 arranges adjacent to the inner chamber left end of described valve body 1, on the chock plug 4 of described piston 2, be provided with the O type circle 5 with the bore seal of described valve body 1, described alarm also includes the high-pressure pipe connector 6 that connects described Emergency Escape Breathing Device compressed air bottle, described high-pressure pipe connector 6 communicates with the inner chamber left end of described valve body 1, be provided with limit channels 7 at the inner chamber of described valve body 1, the left end of described limit channels 7 is connected with the right-hand member of described valve body 1 inner chamber, the right part of described limit channels 7 is connected with the connector of the low-pressure gas output channel for being connected described pressure reducer, described limit channels 7 coordinates with the right part slipper seal of described piston rod 3, the right part of described limit channels 7 is connected with the connector 8 of the low-pressure gas output channel for connecting described pressure reducer, on the central axis of described piston rod 3, be provided with vent hole 9, be provided with the warning plenum duct 10 communicating with the inner chamber of described valve body 1 at the inwall of described limit channels 7, in the time that described chock plug 4 is close to the inner chamber left end of described valve body 1, the entrance of described warning plenum duct 10 is suitable for communicating with the right-hand member of described limit channels 7 just, communicate with the middle part of described valve body 1, on described valve body 1, be provided with mouthpiece 11, when gas approaches while being finished, the chock plug 4 of piston 2 is moved to the left to the inner chamber left end place of described valve body 1, now the gas in described limit channels 7 enters the inner chamber of described valve body by described warning plenum duct 10, and then enter described mouthpiece 11, make described mouthpiece 11 send the chimes of doom that is not less than 80dB, remind user's gas to be about to be finished.
Claims (4)
1. the pressure reducer overbottom pressure alarm of an Emergency Escape Breathing Device, comprise valve body (1), it is characterized in that: in the inner chamber of described valve body (1), be provided with piston (2), described piston (2) comprises piston rod (3) and chock plug (4), the chock plug (4) of described piston (2) arranges adjacent to the inner chamber left end of described valve body (1), on the chock plug (4) of described piston (2), be provided with the O type circle (5) with the bore seal of described valve body (1), described alarm also includes the high-pressure pipe connector (6) that connects described Emergency Escape Breathing Device compressed air bottle, described high-pressure pipe connector (6) communicates with the inner chamber left end of described valve body (1), be provided with limit channels (7) at the inner chamber of described valve body (1), described limit channels (7) coordinates with the right part slipper seal of described piston rod (3), the right part of described limit channels (7) is connected with the connector (8) of the low-pressure gas output channel for connecting described pressure reducer, on the central axis of described piston rod (3), be provided with vent hole (9), be provided with the warning plenum duct (10) communicating with the inner chamber of described valve body (1) at the inwall of described limit channels (2), communicate with the middle part of described valve body (1), on described valve body (1), be provided with mouthpiece (11).
2. a kind of pressure reducer overbottom pressure alarm of Emergency Escape Breathing Device according to claim 1, is characterized in that: the upper resilient sleeve of piston rod (3) in described piston (2) is provided with the spring (12) that axial force is provided for described piston.
3. according to the pressure reducer overbottom pressure alarm of a kind of Emergency Escape Breathing Device described in claim 1 or 2, it is characterized in that: be provided with the adjusting pad (13) for adjusting described spring (12) elastic force at the upper cover of described piston rod (3).
4. according to the pressure reducer overbottom pressure alarm of a kind of Emergency Escape Breathing Device described in claim 11, it is characterized in that: when gas approaches while being finished, the chock plug (4) of piston (2) is moved to the left to the inner chamber left end place of described valve body (1), now the gas in described limit channels (7) enters the inner chamber of described valve body (1) by described warning plenum duct (10), and then enter described mouthpiece (11), make described mouthpiece (11) send the chimes of doom that is not less than 80dB, remind user's gas to be about to be finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210511778.XA CN103845822A (en) | 2012-12-04 | 2012-12-04 | Pressure reducer residual pressure alarm for emergency escape breathing devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210511778.XA CN103845822A (en) | 2012-12-04 | 2012-12-04 | Pressure reducer residual pressure alarm for emergency escape breathing devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103845822A true CN103845822A (en) | 2014-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210511778.XA Pending CN103845822A (en) | 2012-12-04 | 2012-12-04 | Pressure reducer residual pressure alarm for emergency escape breathing devices |
Country Status (1)
| Country | Link |
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| CN (1) | CN103845822A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104288931A (en) * | 2014-10-23 | 2015-01-21 | 南通市海鸥救生防护用品有限公司 | Double alarm device of air breather |
| CN106955431A (en) * | 2017-05-29 | 2017-07-18 | 东台市江海救生消防设备有限公司 | Eebd |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6105632A (en) * | 1996-05-21 | 2000-08-22 | Interspiro, Ab | Combined pressure reducing and charging valve |
| CN1374136A (en) * | 2002-04-11 | 2002-10-16 | 山西虹安科技有限公司 | Pneuamtic device for positive pressure oxygen respirator |
| CN1444497A (en) * | 2000-06-16 | 2003-09-24 | 3M创新有限公司 | Pressure regulator for respirator system |
| CN202654565U (en) * | 2012-07-04 | 2013-01-09 | 江苏华燕船舶装备有限公司 | Residual pressure alarm for pressure reducer of emergency escape breathing apparatus |
-
2012
- 2012-12-04 CN CN201210511778.XA patent/CN103845822A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6105632A (en) * | 1996-05-21 | 2000-08-22 | Interspiro, Ab | Combined pressure reducing and charging valve |
| CN1444497A (en) * | 2000-06-16 | 2003-09-24 | 3M创新有限公司 | Pressure regulator for respirator system |
| CN1374136A (en) * | 2002-04-11 | 2002-10-16 | 山西虹安科技有限公司 | Pneuamtic device for positive pressure oxygen respirator |
| CN202654565U (en) * | 2012-07-04 | 2013-01-09 | 江苏华燕船舶装备有限公司 | Residual pressure alarm for pressure reducer of emergency escape breathing apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104288931A (en) * | 2014-10-23 | 2015-01-21 | 南通市海鸥救生防护用品有限公司 | Double alarm device of air breather |
| CN104288931B (en) * | 2014-10-23 | 2016-08-31 | 南通市海鸥救生防护用品有限公司 | Air respiratorresuscitator dual-alarm device |
| CN106955431A (en) * | 2017-05-29 | 2017-07-18 | 东台市江海救生消防设备有限公司 | Eebd |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |