CN201818853U - Constant pressure valve - Google Patents
Constant pressure valve Download PDFInfo
- Publication number
- CN201818853U CN201818853U CN2010205842427U CN201020584242U CN201818853U CN 201818853 U CN201818853 U CN 201818853U CN 2010205842427 U CN2010205842427 U CN 2010205842427U CN 201020584242 U CN201020584242 U CN 201020584242U CN 201818853 U CN201818853 U CN 201818853U
- Authority
- CN
- China
- Prior art keywords
- spool
- pressure
- valve core
- water outlet
- valve
- 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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- Control Of Fluid Pressure (AREA)
Abstract
A constant pressure valve comprises a valve body. A valve core cavity, a water inlet and a water outlet are arranged on the valve body, a passage is arranged between the water inlet and the water outlet and passes through the valve core cavity, a pressure cavity is arranged on the valve body, the valve core cavity and the water outlet are communicated with the pressure cavity, a cover plate is fixed at the top end of the valve core cavity, a seal ring is arranged between the top end of the valve core cavity and the cover plate, and a valve core and a spring are arranged inside the valve core cavity; and a groove is formed on the valve core at the passage, and the lower part of the valve core is matched with the valve core cavity. The constant pressure valve provided by the utility model has the characteristics of small volume, light weight and simple and reasonable structure, and is convenient for mounting and use; and the downstream pressure is very stable.
Description
Technical field
The utility model relates to a kind of auxiliary device that uses in the water drainage-supply system of giving, and relates in particular to a kind of constant voltage valve that can keep the current constant voltage.
Background technique
In water system, because the water that is provided by same water supply mechanism is provided the difference of physical features height, the hydraulic pressure difference in each department, the higher area of physical features is at water use peak phase normal water often.Constant pressure valve is that the secondary fluid pressure is not subjected to a fluid pressure to influence, be that discharge pressure is not influenced by pressure of supply water, realizes constant voltage output.Complex structure as the existing constant pressure valve, volume is bigger, and cost is higher.
The model utility content
The purpose of this utility model is to provide a kind of constant voltage valve, and it has characteristics such as simple in structure, that volume is little, cost is low.
The technological scheme that technical problem adopted that the utility model solves is: a kind of constant voltage valve comprises valve body, valve body is provided with spool chamber, water intake and water outlet, be provided with passage between water intake and water outlet, passage runs through spool chamber, it is characterized in that: valve body is provided with pressure chamber, and spool chamber, water outlet communicate with pressure chamber, and the top of spool chamber is fixed with cover plate, be provided with seal ring between the top of spool chamber and cover plate, be provided with spool, spring in the spool chamber; The spool at passage place is provided with groove, and spool bottom and spool chamber are suitable.
During use, the water of water intake enters water outlet by the spool of passage, when water outlet pressure excessive, the pressure of water outlet can be sent to the end of spool by pressure chamber, and spool jack-up, the aperture of spool groove reduces, passage diminishes, the water flow of water intake diminishes, and the pressure of water outlet also limit is little, just keeps original pressure; Otherwise the pressure of water outlet is less than the pressure of setting, and spring presses down automatically, and the aperture of spool groove increases, and it is big that passage becomes, and water outlet pressure increases, and just keeps original pressure.Spool bottom and spool chamber are suitable, have guaranteed that the water pressure energy of pressure chamber transfers out the effect of the hydraulic pressure at the mouth of a river to spool effectively.By above-mentioned principle, realize the current constant voltage.This structure has reduced parts than the constant pressure valve of prior art, and volume is little, has reduced cost.
The beneficial effects of the utility model are: have characteristics such as volume is little, in light weight, simple and reasonable, easy to install, and the downstream pressure good stability.
Description of drawings
Below in conjunction with drawings and Examples model utility is further specified.
Fig. 1 is the utility model example structure schematic representation.
Among the figure: 1, valve body 2, seal ring 3, spring 4, cover plate 5, passage 6, pressure chamber 7, spool 8, water intake 9, water outlet
Embodiment:
In Fig. 1, constant pressure valve comprises valve body 1, valve body 1 is provided with spool chamber, water intake 8 and water outlet 9,9 of water intake 8 and water outlets are provided with passage 5, and passage 5 runs through spool chamber, and valve body 1 is provided with pressure chamber 6, spool chamber, water outlet 9 communicate with pressure chamber 6, the top of spool chamber is fixed with cover plate 4, and 4 of the top of spool chamber and cover plates are provided with seal ring 2, is provided with spool 7, spring 3 in the spool chamber; The spool 7 at passage 5 places is provided with groove, and spool 7 bottoms and spool chamber are suitable, has guaranteed that the water pressure energy of pressure chamber 6 transfers out the effect of the hydraulic pressure at the mouth of a river 9 to spool 7 effectively.
Working principle: in Fig. 1, during use, the water of water intake 8 enters water outlet 9 by the spool of passage 5, and excessive when water outlet 9 pressure, the pressure of water outlet 9 can be sent to the end of spool 7 by pressure chamber 6, spool 7 jack-up, the aperture of spool 7 grooves reduces, and passage 5 diminishes, and the water flow of water intake 8 diminishes, the pressure of water outlet 9 also limit is little, just keeps original pressure; Otherwise the pressure of water outlet 9 is less than the pressure of setting, and spring 3 presses down automatically, and the aperture of spool 7 grooves increases, and passage 5 diminishes, and water outlet 9 pressure increase, and just keep original pressure.By above-mentioned principle, realize the current constant voltage.
Claims (1)
1. a constant voltage valve comprises valve body, valve body is provided with spool chamber, water intake and water outlet, be provided with passage between water intake and water outlet, passage runs through spool chamber, it is characterized in that: valve body is provided with pressure chamber, and spool chamber, water outlet communicate with pressure chamber, and the top of spool chamber is fixed with cover plate, be provided with seal ring between the top of spool chamber and cover plate, be provided with spool, spring in the spool chamber; The spool at passage place is provided with groove, and spool bottom and spool chamber are suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205842427U CN201818853U (en) | 2010-10-25 | 2010-10-25 | Constant pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205842427U CN201818853U (en) | 2010-10-25 | 2010-10-25 | Constant pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818853U true CN201818853U (en) | 2011-05-04 |
Family
ID=43916805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205842427U Expired - Fee Related CN201818853U (en) | 2010-10-25 | 2010-10-25 | Constant pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457920A (en) * | 2014-12-15 | 2015-03-25 | 中国燃气涡轮研究院 | Device and method for dynamically calibrating liquid flow |
| CN109675139A (en) * | 2019-01-29 | 2019-04-26 | 刘静 | Medical fluid infusion component and system |
-
2010
- 2010-10-25 CN CN2010205842427U patent/CN201818853U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457920A (en) * | 2014-12-15 | 2015-03-25 | 中国燃气涡轮研究院 | Device and method for dynamically calibrating liquid flow |
| CN104457920B (en) * | 2014-12-15 | 2017-09-26 | 中国燃气涡轮研究院 | A kind of fluid flow dynamic calibration apparatus and method |
| CN109675139A (en) * | 2019-01-29 | 2019-04-26 | 刘静 | Medical fluid infusion component and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20111025 |