CN201297413Y - Air control valve and alarm system provided therewith - Google Patents
Air control valve and alarm system provided therewith Download PDFInfo
- Publication number
- CN201297413Y CN201297413Y CNU2008201236717U CN200820123671U CN201297413Y CN 201297413 Y CN201297413 Y CN 201297413Y CN U2008201236717 U CNU2008201236717 U CN U2008201236717U CN 200820123671 U CN200820123671 U CN 200820123671U CN 201297413 Y CN201297413 Y CN 201297413Y
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- China
- Prior art keywords
- valve
- control valve
- air outlet
- piston
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an air control valve, which comprises a valve body and a valve rod, wherein the valve body is provided with an air inlet chamber, an air outlet chamber and a circular clapboard between the air inlet chamber and the air outlet chamber; the valve rod slides and is sleeved on the circular clapboard; and one end of the valve rod is positioned in the air inlet chamber and provided with a stepped part, and the other end of the valve rod is positioned in the air outlet chamber and connected with an elastic and retractable piston. The valve body is provided with an air outlet in the area between the circular clapboard and the piston; and the stepped part of the valve rod is in selectively sealing fit with the circular clapboard of the valve body, so as to enable the air inlet chamber to be communicated with or disconnected from the air outlet. The utility model also provides an alarm system, comprising the air control valve and a pneumatic alarm device communicated with the air outlet of the air control valve. Because needing no power supply, the air control valve and alarm system provided therewith can be used in occasions when the electric control is not used.
Description
Technical field
The utility model relates to a kind of gas control valve and has the alarm system of this gas control valve.
Background technique
The wirking pressure relay detects air-channel system pressure at present, and when system pressure was lower than certain setting value, pressure relay sent electrical signal, fed back to control circuit, and the relevant sound of control circuit control, light alarm element send sound, visual alarm.But this kind pressure relay needs power supply, for the occasion incompatibility that can not use electric control.
The model utility content
The utility model is devoted to overcome the above-mentioned defective of prior art just and is made.The alarm system that the purpose of this utility model is to propose a kind of gas control valve and has this gas control valve, the utility model does not need power supply, can use in the occasion of not using electric control.
For solving the problems of the technologies described above, the utility model provides a kind of gas control valve, and it comprises: valve body has suction chamber, exhaust chamber and the toroidal membrane between suction chamber and exhaust chamber; And valve rod, be sheathed on toroidal membrane slidably, one end of valve rod is arranged in suction chamber and is provided with stepped part at this end place, but the other end is arranged in exhaust chamber and is connected with the piston of elastic telescopic at this other end place, wherein, valve body is provided with the air outlet in the zone between toroidal membrane and piston, and the stepped part of valve rod and the toroidal membrane of valve body selectively are sealed and matched, so that suction chamber is communicated with the air outlet or disconnects.
Preferably, this gas control valve also comprises first valve gap and second valve gap of being located at the valve body two ends, and first valve gap has the suction port that is communicated with suction chamber, is provided with pressure spring between second valve gap and the piston.
Preferably, an end of pressure spring is connected with the institute piston, and the other end is connected with spring seat, and second valve gap is provided with the screw that compresses spring seat.
Preferably, valve body is provided with through hole in the zone between the piston and second valve gap, and through hole keeps disconnecting by piston and air outlet.
The utility model also provides a kind of alarm system, comprising: described gas control valve; And pneumatic warning device, this pneumatic warning device is communicated with the air outlet of described gas control valve.
Preferably, pneumatic warning device is pneumatic display device or pneumatic sounder.
The beneficial effects of the utility model are, by changing the setting pressure of gas control valve, control the break-make of input gas, thereby by gas control but not electric control realizes warning function, so the utility model can use in the occasion that not use electric control.Utilize the utility model need not power supply, simple in structure, easy to adjust, safe and reliable, life-span is long, can be widely used in the borders, abominable work bosom such as various inflammable, explosive, moist, dust are big, high magnetic fields, high temperature, low temperature, as the low controlling alarm of bleed pressure in the pneumatic gas-control first-aid respirator.
Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is in order to provide further instruction to claimed the utility model.
Description of drawings
Accompanying drawing is formed the part of this specification, with helping further understand the utility model.These accompanying drawings illustrate embodiments more of the present utility model, and can be used for illustrating principle of the present utility model with specification.In the accompanying drawing:
Fig. 1 shows the sectional view of gas control valve of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.Identical in the accompanying drawings parts are represented with identical label.
With reference to figure 1 gas control valve of the present utility model is described, it comprises: valve body 5, first valve gap 11, second valve gap 1 and be located at valve rod 3 and piston 4 in the valve body 5, wherein, valve body 5 has suction chamber 12, exhaust chamber 13 and the toroidal membrane 51 between suction chamber 12 and exhaust chamber 13.Piston 4 is located in the exhaust chamber 13 and by seal ring 9 and exhaust chamber 13 and is tightly connected, valve rod 3 is sheathed in the toroidal membrane 51 of valve body 5 slidably, one end of this valve rod 3 is arranged in suction chamber 12 and this end has stepped part 31, and the other end of this valve rod 3 is arranged in exhaust chamber 13 and this other end is connected with piston 4.
In addition, can find out also from Fig. 1 that valve body 5 is provided with through hole R in the zone between the piston 4 and second valve gap 1, this through hole R keeps disconnecting with air outlet A by piston 4, and this through hole R is communicated with the air pressure that is used for space between the regulating piston 4 and second valve gap 1 with atmosphere.Compress sealing state even the toroidal membrane 51 of stepped part of valve rod 3 31 and valve body 5 is in, this through hole R still keeps disconnecting with air outlet A by piston 4.
In the gas control valve of the present utility model, have seal ring 10 between first valve gap 11 and the valve body 5, also be provided with seal ring 2 on the stepped part 31 of valve rod 3, seal ring 2 seals when contacting when stepped part 31 and toroidal membrane 51 compress.
The utility model also provides a kind of alarm system, and this alarm system comprises: gas control valve of the present utility model; And the pneumatic warning device that is communicated with the air outlet of gas control valve.In the utility model, pneumatic warning device is pneumatic display device or pneumatic sounder.Thereby when air pressure during less than the gas control valve setting pressure, gas enters pneumatic warning device to send visual alarm signal or audible ringing signal through air outlet A, otherwise, when the setting pressure of air pressure greater than gas control valve, gas cannot enter pneumatic warning device by air outlet A, would not send alarm signal mutually.
Although the utility model is illustrated with reference to accompanying drawing and preferred embodiment, obviously, for a person skilled in the art, under the prerequisite that does not deviate from spirit and scope of the present utility model, can make various changes and variation to the utility model.Various change of the present utility model, the content that changes by appending claims and equivalent thereof contain.
Claims (6)
1. a gas control valve is characterized in that, comprising:
Valve body (5), have suction chamber (12), exhaust chamber (13) and be positioned at described suction chamber (12) and exhaust chamber (13) between toroidal membrane (51); And
Valve rod (3), be sheathed on described toroidal membrane (51) slidably, one end of described valve rod (3) is arranged in described suction chamber (12) and is provided with stepped part (31) at this end place, and the other end is arranged in described exhaust chamber (13) but and is connected with the piston (4) of elastic telescopic at this other end place
Wherein, described valve body (5) is provided with the air outlet in the zone that is positioned between described toroidal membrane (51) and the piston (4), the stepped part (31) of described valve rod (3) selectively is sealed and matched with the toroidal membrane (51) of described valve body (5), so that described suction chamber (12) is communicated with described air outlet or disconnects.
2. gas control valve according to claim 1, it is characterized in that, also comprise first valve gap (11) and second valve gap (1) of being located at described valve body (5) two ends, described first valve gap (11) has the suction port that is communicated with described suction chamber (12), is provided with pressure spring (6) between described second valve gap (1) and the described piston (4).
3. gas control valve according to claim 2 is characterized in that, an end of described pressure spring (6) is connected with described piston (4), and the other end is connected with spring seat (7), and described second valve gap (1) is provided with the screw (8) that compresses spring seat (7).
4. gas control valve according to claim 3 is characterized in that, described valve body (5) is provided with through hole in the zone that is positioned between described piston (4) and described second valve gap (1), and described through hole keeps disconnecting by described piston (4) and described air outlet.
5. an alarm system is characterized in that, comprising:
The described gas control valve of aforementioned each claim; And
Pneumatic warning device is communicated with the air outlet of described gas control valve.
6. alarm system according to claim 5 is characterized in that, described pneumatic warning device is pneumatic display device or pneumatic sounder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201236717U CN201297413Y (en) | 2008-11-17 | 2008-11-17 | Air control valve and alarm system provided therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201236717U CN201297413Y (en) | 2008-11-17 | 2008-11-17 | Air control valve and alarm system provided therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297413Y true CN201297413Y (en) | 2009-08-26 |
Family
ID=41043393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201236717U Expired - Fee Related CN201297413Y (en) | 2008-11-17 | 2008-11-17 | Air control valve and alarm system provided therewith |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201297413Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865316A (en) * | 2010-06-30 | 2010-10-20 | 张银根 | Pulse safety valve |
| CN102114300A (en) * | 2009-12-31 | 2011-07-06 | 北京谊安医疗系统股份有限公司 | PEEP (positive end expiratory pressure) valve and respirator with same |
| CN102114306B (en) * | 2009-12-31 | 2013-05-08 | 北京谊安医疗系统股份有限公司 | Gas pressure alarm device |
| CN103182136A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Medical pneumatic control valve |
| CN105023397A (en) * | 2014-04-25 | 2015-11-04 | 深圳市科曼医疗设备有限公司 | Gas differential pressure alarm system and gas differential pressure alarm |
| CN107588230A (en) * | 2017-10-11 | 2018-01-16 | 苏州科迪流体控制设备有限公司 | A kind of safe police datagram-style circulated gases pilot valve |
-
2008
- 2008-11-17 CN CNU2008201236717U patent/CN201297413Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114300A (en) * | 2009-12-31 | 2011-07-06 | 北京谊安医疗系统股份有限公司 | PEEP (positive end expiratory pressure) valve and respirator with same |
| CN102114306B (en) * | 2009-12-31 | 2013-05-08 | 北京谊安医疗系统股份有限公司 | Gas pressure alarm device |
| CN101865316A (en) * | 2010-06-30 | 2010-10-20 | 张银根 | Pulse safety valve |
| CN103182136A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Medical pneumatic control valve |
| CN103182136B (en) * | 2011-12-30 | 2015-09-30 | 北京谊安医疗系统股份有限公司 | Medical pneumatic control valve |
| CN105023397A (en) * | 2014-04-25 | 2015-11-04 | 深圳市科曼医疗设备有限公司 | Gas differential pressure alarm system and gas differential pressure alarm |
| CN105023397B (en) * | 2014-04-25 | 2017-10-10 | 深圳市科曼医疗设备有限公司 | Gas differential pressure warning system and its gas differential pressure alarm |
| CN107588230A (en) * | 2017-10-11 | 2018-01-16 | 苏州科迪流体控制设备有限公司 | A kind of safe police datagram-style circulated gases pilot valve |
| CN107588230B (en) * | 2017-10-11 | 2024-03-15 | 苏州科迪流体控制设备有限公司 | Safety alarm type ventilation gas guide valve |
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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 |
Granted publication date: 20090826 Termination date: 20141117 |
|
| EXPY | Termination of patent right or utility model |