CN201747961U - Gas pressure reducer - Google Patents
Gas pressure reducer Download PDFInfo
- Publication number
- CN201747961U CN201747961U CN2010202347108U CN201020234710U CN201747961U CN 201747961 U CN201747961 U CN 201747961U CN 2010202347108 U CN2010202347108 U CN 2010202347108U CN 201020234710 U CN201020234710 U CN 201020234710U CN 201747961 U CN201747961 U CN 201747961U
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- CN
- China
- Prior art keywords
- valve body
- gas
- pressure reducer
- air inlet
- gas pressure
- 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 discloses a gas pressure reducer which comprises a valve body. A valve core is arranged in the valve body, an air inlet joint is arranged at the side edge of the valve body, an air inlet channel is arranged in the air inlet joint, and an air inlet hole communicated with the air inlet channel is arranged on the side wall of the valve body. The gas pressure reducer is characterized in that a first filtering net is arranged at the position on the inner surface of the valve body corresponding to the air inlet hole. As the first filtering net is arranged on the outer surface of the valve core in a winding manner, gas can be filtered first to not only avoid impurities from entering the valve body, but also prevent high-pressure gas from directly impacting the valve core to cause the valve core to deviate from the middle part of the valve body; namely, the valve core can well seal an air outlet all the time; therefore, the service life of the gas pressure reducer can be greatly prolonged.
Description
Technical field
The utility model relates to a kind of gas pressure reducer.
Background technique
Gas pressure reducer is that pressurized gas are reduced to low-pressure gas, and kept the pressure and the constant controlling device of stability of flow of output gas.Because the gas cylinder internal pressure is higher, and gas welding, gas cutting use the required pressure of point less, thus need come reduce to low-pressure gas to the gas that is stored in the elevated pressures in the gas cylinder with decompressor, and should guarantee that required working pressure keeps steady state from start to finish.Current gas pressure reducer comprises valve body, is provided with spool in the valve body, and the side of described valve body is provided with air input joint, is provided with gas-entered passageway in the air input joint, also is provided with inlet hole on the sidewall of described valve body, and inlet hole is connected with described gas-entered passageway.When the gas of high pressure enters inlet hole by gas-entered passageway, can make spool depart from the central axis of valve body, specifically see Fig. 3 (dotted line is represented the position after spool is subjected to impacting with high pressure), can cause spool can not well seal the air outlet like this, cause gas leakage, will reduce the working life of gas pressure reducer so greatly.
The model utility content
The utility model provides a kind of simple in structure, long service life at deficiency of the prior art, and spool is difficult for departing from the gas pressure reducer of the central axis of valve body.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of gas pressure reducer, comprise valve body, be provided with spool in the valve body, the side of described valve body is provided with air input joint, be provided with gas-entered passageway in the air input joint, also be provided with inlet hole on the sidewall of described valve body, inlet hole is connected with described gas-entered passageway, it is characterized in that the internal surface of described valve body is provided with first filter screen corresponding to air inlet position.
In the technique scheme, the end of described gas-entered passageway is provided with second filter screen.
In the technique scheme, described first filter screen is around spool.
Beneficial effect: the utility model compared with prior art has following beneficial effect:
The utility model is owing to the outer surface at spool is arranged with first filter screen, at first can filtering gas, avoid impurity to enter valve body, secondly can prevent that the gas of high pressure from directly impacting spool, making spool depart from the centre of valve body, also be, make spool well seal the air outlet always, can improve the working life of gas pressure reducer greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
When Fig. 2 is impacted by pressurized gas for spool, the structural representation during the spool skew.
Structural representation when Fig. 3 is impacted by pressurized gas for spool of the prior art.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
See Fig. 1～Fig. 2, a kind of gas pressure reducer, comprise valve body 1, be provided with spool 5 in the valve body 1, the side of described valve body 1 is provided with air input joint 3, is provided with gas-entered passageway 30 in the air input joint 3, also is provided with inlet hole 10 on the sidewall of described valve body 1, inlet hole 10 is connected with described gas-entered passageway 30, and the internal surface of described valve body 1 is provided with first filter screen 7 corresponding to inlet hole 10 places.The cross section of described first filter screen 7 is an annulus, and it is around spool 5.Be provided with first filter screen 7, at first can filtering gas, more main is, the gas that can prevent high pressure directly impacts spool 5, makes spool 5 depart from the centre of valve body 1, that is to say, make spool 5 well seal the air outlet always, can improve the working life of gas pressure reducer greatly.
Preferably, the end of described gas-entered passageway 30 is provided with second filter screen 9.Be provided with second filter screen 9, also can filtering gas, and the gas of high pressure is not just weakened when entering inlet hole 10.
Claims (3)
1. gas pressure reducer, comprise valve body (1), be provided with spool (5) in the valve body (1), the side of described valve body (1) is provided with air input joint (3), be provided with gas-entered passageway (30) in the air input joint (3), also be provided with inlet hole (10) on the sidewall of described valve body (1), inlet hole (10) is connected with described gas-entered passageway (30), it is characterized in that the internal surface of described valve body (1) locates to be provided with first filter screen (7) corresponding to inlet hole (10).
2. gas pressure reducer as claimed in claim 1 is characterized in that, the end of described gas-entered passageway (30) is provided with second filter screen (9).
3. gas pressure reducer as claimed in claim 1 is characterized in that, described first filter screen (7) is around spool (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202347108U CN201747961U (en) | 2010-06-23 | 2010-06-23 | Gas pressure reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202347108U CN201747961U (en) | 2010-06-23 | 2010-06-23 | Gas pressure reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747961U true CN201747961U (en) | 2011-02-16 |
Family
ID=43582639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202347108U Expired - Fee Related CN201747961U (en) | 2010-06-23 | 2010-06-23 | Gas pressure reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747961U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727278A (en) * | 2013-12-05 | 2014-04-16 | 常熟市中凯仪表有限公司 | Gas pressure reducer |
| CN103727306A (en) * | 2013-12-05 | 2014-04-16 | 常熟市中凯仪表有限公司 | Pressure reducer |
| CN103721490A (en) * | 2013-12-05 | 2014-04-16 | 常熟市中凯仪表有限公司 | Filtration type gas decompressor |
-
2010
- 2010-06-23 CN CN2010202347108U patent/CN201747961U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727278A (en) * | 2013-12-05 | 2014-04-16 | 常熟市中凯仪表有限公司 | Gas pressure reducer |
| CN103727306A (en) * | 2013-12-05 | 2014-04-16 | 常熟市中凯仪表有限公司 | Pressure reducer |
| CN103721490A (en) * | 2013-12-05 | 2014-04-16 | 常熟市中凯仪表有限公司 | Filtration type gas decompressor |
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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: 20110216 Termination date: 20150623 |
|
| EXPY | Termination of patent right or utility model |