CN201487221U - Automatic constant pressure and constant flow valve - Google Patents
Automatic constant pressure and constant flow valve Download PDFInfo
- Publication number
- CN201487221U CN201487221U CN2009200921792U CN200920092179U CN201487221U CN 201487221 U CN201487221 U CN 201487221U CN 2009200921792 U CN2009200921792 U CN 2009200921792U CN 200920092179 U CN200920092179 U CN 200920092179U CN 201487221 U CN201487221 U CN 201487221U
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- piston
- spring
- constant
- valve body
- pressure
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- Safety Valves (AREA)
Abstract
The utility model discloses an automatic constant pressure and constant flow valve used for controlling the water pressure and water flow of a water pipe. The valve comprises a valve body, a spring and a piston, wherein the inner wall of one end of the valve body is provided with a spring seat; the center of the spring seat is provided with a water outlet; the piston is positioned in the other end of the valve body; and the spring is arranged between the piston and the spring seat. The valve controls the water pressure and water flow by using the size of the cross-section water flow flowing through the spring gap and generated by the thrust of the piston on the spring, thus having high constant pressure and constant flow precision with the accuracy error being less than 5%.
Description
Technical field
The utility model relates to a kind of automatic constant-pressure constant-flow valve that is used to control water pipe hydraulic pressure and current.
Background technique
Present constant-pressure constant-flow valve comprises valve body, piston and spring.These valve current are controlled by not exclusively in the gapping of spring cross section, and degree of regulation is not high, and instability differs greatly during high low pressure, differs 30～50%.
Summary of the invention
In order to overcome the defective of not constant current of existing constant-pressure constant-flow valve constant voltage, the utility model provides a kind of automatic constant-pressure constant-flow valve, and this automatic constant-pressure constant-flow valve can not only constant pressure and flow, and the precision height.
The technological scheme that its technical problem that solves the utility model adopts is: this valve comprises valve body, spring and piston, valve body one end inwall is provided with spring seat, the spring seat center is provided with osculum, and piston is positioned at the valve body the other end, and spring is between piston and spring seat.
Described piston one end is provided with the water inlet.
Be equipped with limiting stopper between described piston and the valve body, piston outer wall is provided with projection, is equipped with seal ring between projection and the valve body.
The utility model utilizes the size that piston flows through the cross section current of gapping of spring to the thrust size generation of spring to control discharge pressure and flow, so the precision height of constant pressure and flow, and trueness error is less than 5%.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is first example structure schematic representation of the present utility model.
Fig. 2 is second example structure schematic representation of the present utility model.
Among the figure: 1. valve body, 2. piston, 3. spring, 4. limiting stopper, 5. projection, 6. water inlet, 7. spring seat, 8. osculum, 9. seal ring.
Embodiment
In Fig. 1, this valve comprises valve body 1, spring 3 and piston 2, valve body 1 right-hand member inwall is provided with spring seat 7, and spring seat 7 centers are provided with osculum 8, and piston 2 is positioned at the valve body left end, spring 3 is between piston 2 and spring seat 7, be equipped with limiting stopper 4 between piston 2 and the valve body 1, limiting stopper 4 and valve body 1 are by being threaded, and piston 2 outer walls are provided with projection 5, be equipped with seal ring 9 between projection 5 and the valve body 1, piston 2 right-hand members are provided with water inlet 6.
In Fig. 2, valve body 1 right-hand member has elbow.
During use, current flow to through the water inlet 6 of piston 2 right-hand members, again through the gap of spring 3, flow out from osculum 8.
When intake pressure increased, the thrust of 2 pairs of springs 3 of piston increased, spring 3 gap smaller, and the water flow section of the spring 3 of flowing through reduces, and is consistent with this original hydraulic pressure and water flow from hydraulic pressure and flow that osculum 8 flows out, thus constant pressure and flow.
When intake pressure reduced, the thrust of 2 pairs of springs 3 of piston reduced, and spring 3 gaps increase, and the water flow section of the spring 3 of flowing through increases, and is consistent with this former hydraulic pressure and flow from hydraulic pressure and flow that osculum 8 flows out, thus constant pressure and flow.
Claims (3)
1. automatic constant-pressure constant-flow valve, this valve comprises valve body, spring and piston, and valve body one end inwall is provided with spring seat, it is characterized in that the spring seat center is provided with osculum, and piston is positioned at the valve body the other end, and spring is between piston and spring seat.
2. automatic constant-pressure constant-flow valve according to claim 1 is characterized in that piston one end is provided with the water inlet.
3. automatic constant-pressure constant-flow valve according to claim 1 is characterized in that being equipped with limiting stopper between piston and the valve body, and piston outer wall is provided with projection, is equipped with seal ring between projection and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200921792U CN201487221U (en) | 2009-07-24 | 2009-07-24 | Automatic constant pressure and constant flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200921792U CN201487221U (en) | 2009-07-24 | 2009-07-24 | Automatic constant pressure and constant flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487221U true CN201487221U (en) | 2010-05-26 |
Family
ID=42426100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200921792U Expired - Fee Related CN201487221U (en) | 2009-07-24 | 2009-07-24 | Automatic constant pressure and constant flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487221U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135020A (en) * | 2012-07-21 | 2015-12-09 | 中山市雅西环保科技有限公司 | Constant current device |
| CN110141744A (en) * | 2019-06-30 | 2019-08-20 | 河南省斯科赛斯科技发展有限公司 | Air-current atomising device |
| CN110530446A (en) * | 2019-09-04 | 2019-12-03 | 熊猫智慧水务有限公司 | A kind of wisdom energy-saving water meter |
| CN111271877A (en) * | 2018-12-04 | 2020-06-12 | 宁波方太厨具有限公司 | Pressure-stabilizing water storage tank for water heater |
| CN111998110A (en) * | 2020-07-17 | 2020-11-27 | 成都飞机工业（集团）有限责任公司 | Compressed air over-speed automatic air-cut-off device |
| CN112093931A (en) * | 2020-08-13 | 2020-12-18 | 杭州莱鸟科技有限责任公司 | Domestic intelligent washing machine with sewage purification function |
| CN113615371A (en) * | 2021-07-29 | 2021-11-09 | 董先丽 | Accurate fertilizer injection mechanism based on plant drip irrigation |
| CN114396497A (en) * | 2021-12-31 | 2022-04-26 | 浙江大学温州研究院 | Passive micro valve with constant flow output and method thereof |
-
2009
- 2009-07-24 CN CN2009200921792U patent/CN201487221U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135020A (en) * | 2012-07-21 | 2015-12-09 | 中山市雅西环保科技有限公司 | Constant current device |
| CN111271877A (en) * | 2018-12-04 | 2020-06-12 | 宁波方太厨具有限公司 | Pressure-stabilizing water storage tank for water heater |
| CN111271877B (en) * | 2018-12-04 | 2021-08-20 | 宁波方太厨具有限公司 | Pressure-stabilizing water storage tank for water heater |
| CN110141744A (en) * | 2019-06-30 | 2019-08-20 | 河南省斯科赛斯科技发展有限公司 | Air-current atomising device |
| CN110141744B (en) * | 2019-06-30 | 2021-03-23 | 河南省斯科赛斯科技发展有限公司 | Airflow atomizer |
| CN110530446A (en) * | 2019-09-04 | 2019-12-03 | 熊猫智慧水务有限公司 | A kind of wisdom energy-saving water meter |
| CN111998110A (en) * | 2020-07-17 | 2020-11-27 | 成都飞机工业（集团）有限责任公司 | Compressed air over-speed automatic air-cut-off device |
| CN111998110B (en) * | 2020-07-17 | 2022-05-10 | 成都飞机工业（集团）有限责任公司 | Compressed air over-speed automatic air-cut-off device |
| CN112093931A (en) * | 2020-08-13 | 2020-12-18 | 杭州莱鸟科技有限责任公司 | Domestic intelligent washing machine with sewage purification function |
| CN113615371A (en) * | 2021-07-29 | 2021-11-09 | 董先丽 | Accurate fertilizer injection mechanism based on plant drip irrigation |
| CN114396497A (en) * | 2021-12-31 | 2022-04-26 | 浙江大学温州研究院 | Passive micro valve with constant flow output and method thereof |
| CN114396497B (en) * | 2021-12-31 | 2024-05-24 | 浙江大学温州研究院 | Passive micro valve with constant flow output and method thereof |
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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: 20100526 Termination date: 20120724 |