CN202914832U - Constant flow valve - Google Patents
Constant flow valve Download PDFInfo
- Publication number
- CN202914832U CN202914832U CN 201220395998 CN201220395998U CN202914832U CN 202914832 U CN202914832 U CN 202914832U CN 201220395998 CN201220395998 CN 201220395998 CN 201220395998 U CN201220395998 U CN 201220395998U CN 202914832 U CN202914832 U CN 202914832U
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- CN
- China
- Prior art keywords
- water
- flow valve
- permanent
- flow
- limit 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 relates to a constant flow valve which is formed by four components: a constant flow valve casing 1, a flow limit body 2, a spring 3 and a close cover 4. A fixing component 7, a sealing groove 9 and an auxiliary water outlet channel 8 are arranged on the constant flow valve casing. Water flow passes through a close cover water inlet 6 and a flow limit body water hole 5 to enter a channel between the constant flow valve casing and the flow limit body. Due to a curve cone structure at one end of the flow limit body, when the flow limit body is close to the constant flow valve casing at a water outlet end, a water passing section is changed, namely when water pressure is large, the flow limit body compresses the spring so as to be close to the constant flow valve casing, and the water passing section is smaller; and when the water pressure is small, the spring pushes the flow limit body to leave the constant flow valve casing, and the water passing section is larger. Therefore, constant outlet water flow quantity can be maintained.
Description
Technical field
The utility model is a kind of permanent-flow valve, a kind of specifically can dynamic adjustments be crossed the water cross section according to the intake pressure size, thereby keep the constant device of water flow.
Background technique
Present common water terminal, as: water tap, gondola water faucet etc., can not come automatic water yield adjusting according to the size of hydraulic pressure, this is because the cross section of flowing water is exactly changeless after the water terminal is made, flowing water is by the water terminal, crossing the water cross section can not change with the pressure size variation, so hydraulic pressure is when large, and flow is just large; Hydraulic pressure hour, flow is just little.According to hydromechanical principle, want constant current, when pressure is large, need dwindle the water cross section; And at pressure hour, need increase the water cross section.
Summary of the invention
The purpose of this utility model provides a kind of permanent-flow valve, can dynamically adjust the flowing water cross section according to hydraulic pressure size, when hydraulic pressure is large, turned the water cross section down; Hydraulic pressure hour tuned up the water cross section, thereby kept all the time water flow at a steady state value.
For achieving the above object, the utility model adopts following technological scheme: permanent-flow valve is by permanent-flow valve housing, current limliting body, spring, 4 module compositions of capping, and at the permanent-flow valve housing fixed component, seal groove and auxiliary exhalant canal arranged; One end of current limliting body has water passage hole, and the other end has a curved surface cone; Flowing water is by capping water inlet, current limliting body water passage hole, under the effect of hydraulic pressure, the curved surface cone that promotes the current limliting body moves to the waterexit end, utilize the effect of spring, between current limliting body and permanent-flow valve housing cross the water cross section can be with the pressure size inverse change, thereby in certain range hydraulic pressure, can keep the constant of water flow.
Description of drawings
Fig. 1 is the plan view of permanent-flow valve
Fig. 2 is permanent-flow valve A side schematic view
Fig. 3 is permanent-flow valve B side schematic view
Fig. 4 is current limliting body B side schematic view
Among the figure: 1, permanent-flow valve housing; 2, current limliting body; 3, spring; 4, capping; 5, current limliting body water passage hole; 6, capping water inlet; 7, fixed component; 8, auxiliary exhalant canal; 9, seal groove.
Embodiment:
During practical operation, fixed component 7 is fixed on permanent-flow valve in the pipeline, and configuration O type circle can be so that permanent-flow valve housing 1 have water to flow through with pipeline enclosure in seal groove 9, and capping 4 is used for sealing current limliting body 2 and spring 3 in the permanent-flow valve housing; Flowing water enters the passage between permanent-flow valve housing and current limliting body by capping water inlet 6, current limliting body water passage hole 5; Because the curved surface pyramid configuration of current limliting body one end, thus, cross the water cross section and change during near the permanent-flow valve housing of waterexit end at the current limliting body, that is: when hydraulic pressure is large, current limliting body Compress Spring and near the permanent-flow valve housing, cross the water cross section to diminish; At hydraulic pressure hour, spring promotes the current limliting body and leaves the permanent-flow valve housing, crosses the water cross section and becomes large.Thereby can keep the constant of water flow.
Fixed component 7 can be located at two ends or the neutral position of permanent-flow valve housing 1; Current limliting body one end has water passage hole, and the other end is the curved surface cone; Auxiliary exhalant canal 8 is made of several semicircle orifices, can guarantee like this under any hydraulic pressure between current limliting body and permanent-flow valve housing water channel was arranged, and the current limliting body can not block exhalant canal fully.
In sum: the designed permanent-flow valve of the utility model can reach in the scope of certain variation in water pressure, keeps the constant purpose of water flow.
Claims (4)
1. a permanent-flow valve by permanent-flow valve housing, current limliting body, spring, 4 module compositions of capping, is characterized in that: at the permanent-flow valve housing fixed component, seal groove and auxiliary exhalant canal are arranged.
2. such as the described a kind of permanent-flow valve of claim 1, it is characterized in that: fixed component is in two ends or the neutral position of permanent-flow valve housing.
3. such as the described a kind of permanent-flow valve of claim 1, it is characterized in that: an end of current limliting body has water passage hole, and the other end has a curved surface cone.
4. such as the described a kind of permanent-flow valve of claim 1, it is characterized in that: auxiliary exhalant canal is made of several semicircle orifices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395998 CN202914832U (en) | 2012-08-12 | 2012-08-12 | Constant flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395998 CN202914832U (en) | 2012-08-12 | 2012-08-12 | Constant flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914832U true CN202914832U (en) | 2013-05-01 |
Family
ID=48163149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220395998 Expired - Fee Related CN202914832U (en) | 2012-08-12 | 2012-08-12 | Constant flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914832U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422140A (en) * | 2015-08-06 | 2017-02-22 | Rg绿色系统公司 | Constant flow valve for fire protection installations |
| CN110388470A (en) * | 2019-07-11 | 2019-10-29 | 贾世忠 | A kind of constant current Water-saving self-cleaning hand washing tap |
-
2012
- 2012-08-12 CN CN 201220395998 patent/CN202914832U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422140A (en) * | 2015-08-06 | 2017-02-22 | Rg绿色系统公司 | Constant flow valve for fire protection installations |
| CN106422140B (en) * | 2015-08-06 | 2019-11-22 | Rg绿色系统公司 | Permanent flow valve for fire fighting device |
| CN110388470A (en) * | 2019-07-11 | 2019-10-29 | 贾世忠 | A kind of constant current Water-saving self-cleaning hand washing tap |
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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: 20130501 Termination date: 20130812 |