CN201187609Y - Self-operated flow controlling valve - Google Patents
Self-operated flow controlling valve Download PDFInfo
- Publication number
- CN201187609Y CN201187609Y CNU2008200126033U CN200820012603U CN201187609Y CN 201187609 Y CN201187609 Y CN 201187609Y CN U2008200126033 U CNU2008200126033 U CN U2008200126033U CN 200820012603 U CN200820012603 U CN 200820012603U CN 201187609 Y CN201187609 Y CN 201187609Y
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- valve
- valve rod
- section
- valve body
- seat
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- Expired - Fee Related
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Abstract
The utility model relates to a self-force type flow control valve which comprises a valve body, wherein, a water inlet and a water outlet are respectively arranged at both corresponding sides of the valve body, a pressure flow regulating valve is arranged in a flow channel between the water inlet and the water outlet of the valve body, the pressure flow regulating valve is provided with a valve rod arranged on a valve rod seat in the valve body, a valve rod circular guiding hole with the diameter matched with that of the valve rod is arranged on the valve rod seat, the valve rod penetrates through the valve rod circular guiding hole and is provided with an attrition section contacted with the valve rod circular guiding hole on the valve rod seat, a valve seat is arranged in the valve body, a valve core matched with the valve seat is arranged on the valve rod, one end of the valve rod is connected with an elastic film through a pressure pad, an air chamber is arranged between one side of the elastic film and the inner wall of the valve body, the air chamber is provided with an air inlet and an air outlet, springs are arranged in the air chamber and between the elastic film and the inner wall of the valve body, the cross section of the attrition section adopts an equiangular triangle, a square, a regular pentagon or an elliptic shape. The matching contact area between the valve rod attrition section and the valve rod circular guiding hole is smaller, the frictional resistance is smaller during the reciprocating movement of the valve rod, the control sensitivity is higher, and the gap is not easy to be blocked by foreign bodies.
Description
Technical field
The utility model relates to the valve rod of a kind of self-operated flow control valve, particularly a kind of self-operated flow control valve.
Background technique
Self-operated flow control valve is used for the water transfer pipe network system, self-operated flow control valve does not need the external energy, rely on and to be transferred self variation in pressure of WATER AS FLOW MEDIUM to automatically adjust, automatically eliminate the residual pressure head of water transfer pipe network and the changes in flow rate that pressure surge causes, constant user's inlet outlet pressure differential, the stability of flow of water in the control water transfer pipe network system, self-operated flow control valve is specially adapted in household metering or the automatic control system.Self-operated flow control valve has valve body, the both sides that valve body is relative have respectively into, water outlet, advancing in the valve body, the pressure flow modulating valve is arranged in the runner between the water outlet, the pressure flow modulating valve has the valve rod on the valve rod base in valve body, valve rod base in the valve body has single seat, two-seater or sleeve, the valve rod circle guide hole that has diameter to match on the valve rod base with the diameter of valve rod, valve rod passes from valve rod circle guide hole, valve seat is arranged in the valve body, the spool that has that matches with valve seat is arranged on the valve rod, one end of valve rod is connected with flexible sheet with pressure pad, between one side of flexible sheet and the valve interior wall air chamber is arranged, air chamber has air inlet/outlet, in the air chamber, between flexible sheet and the valve interior wall spring is arranged.During use, the air inlet/outlet of air chamber links to each other with the water outlet of valve body one side, when the changes in flow rate that the residual pressure head and the pressure surge of pipe network causes, fluid can promote motion of membrane, motion of membrane can drive the valve rod to-and-fro motion that links to each other with pressure pad with it, during the valve rod to-and-fro motion, valve rod have with valve rod base on the contacted one section friction section of valve rod circle guide hole.In the prior art, valve rod circle guide hole is a circular hole, and the section of valve rod friction section is circular, and the diameter of valve rod friction section matches with the diameter of valve rod circle guide hole.Matching gap between the valve rod friction section of this self-operated flow control valve and the valve rod base upper valve rod circle guide hole is more little, circular runout during the valve rod to-and-fro motion is more little, spool is good more with cooperating of valve seat, control accuracy to flow is high more, but the matching gap between valve rod friction section and the valve rod base upper valve rod circle guide hole is more little, cooperate area of contact big more between valve rod friction section and the valve rod circle guide hole, surface friction drag is big more during the valve rod to-and-fro motion, sensitivity to flow control is low more, grown service time, the gap also may take place because of the gap is little is clogged by foreign matter stem movement is blocked, greatly influence sensitivity to flow control, the gap is more little is clogged easily more by foreign matter, also can make the gap jam-pack make self-operated flow control valve effect out of hand when serious, if increase the matching gap between valve rod friction section and the valve rod base upper valve rod circle guide hole, though the gap between valve rod friction section and the valve rod base upper valve rod circle guide hole is difficult for being clogged by foreign matter, but because of the gap greatly when the valve rod to-and-fro motion circular runout bigger, cause spool bad more with cooperating of valve seat, not high to the control accuracy of flow.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, proposes to cooperate the less self-operated flow control valve of area of contact between a kind of valve rod friction section and the valve rod circle guide hole.
The utility model is realized with the following method.
Self-operated flow control valve has valve body, the both sides that valve body is relative have respectively into, water outlet, advancing in the valve body, the pressure flow modulating valve is arranged in the runner between the water outlet, the pressure flow modulating valve has the valve rod on the valve rod base in valve body, the valve rod circle guide hole that has diameter to match on the valve rod base with the diameter of valve rod, valve rod passes from valve rod circle guide hole, valve rod have with valve rod base on the contacted one section friction section of valve rod circle guide hole, valve seat is arranged in the valve body, the spool that matches with valve seat is arranged on the valve rod, one end of valve rod is connected with flexible sheet with pressure pad, between one side of flexible sheet and the valve interior wall air chamber is arranged, air chamber has air inlet/outlet, in the air chamber, between flexible sheet and the valve interior wall spring is arranged, the cross section of friction section is an equilateral triangle, square, regular pentagon or ellipse.
The cross section of friction section is an equilateral triangle on the utility model valve rod, square, regular pentagon or ellipse, cooperate area of contact less between valve rod friction section and the valve rod circle guide hole, when making the utility model, can allow the cross section of valve rod friction section be equilateral triangle, square, between the diameter of regular pentagon or oval external diameter of a circle and valve rod base upper valve rod circle guide hole less clearance is arranged, because of cooperating area of contact less between valve rod friction section and the valve rod circle guide hole, surface friction drag is less during the valve rod to-and-fro motion, assurance is to the sensitivity of flow control, less also having bigger space cooperating surface of contact except having between valve rod friction section and the valve rod circle guide hole, difficultly clogged by foreign matter.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the main cross-sectional schematic according to a kind of self-operated flow control valve of invention scheme proposition of the present utility model;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is that the cross section of friction section is the A-A generalized section of foursquare Fig. 1;
Fig. 4 is that the cross section of friction section is the A-A generalized section of Fig. 1 of regular pentagon;
Fig. 5 is that the cross section of friction section is the A-A generalized section of oval-shaped Fig. 1.
Embodiment
Fig. 1, among Fig. 2, self-operated flow control valve has valve body 1, the both sides that valve body is relative have respectively into, water outlet 2,3, advancing in the valve body, in the runner 4 between the water outlet pressure flow modulating valve 5 is arranged, the pressure flow modulating valve has the valve rod base 6 in valve body, valve rod 8 on 7, the valve rod circle guide hole 9 that has diameter to match on the valve rod base with the diameter of valve rod, valve rod passes from valve rod circle guide hole, valve rod have with valve rod base on the contacted one section friction section 10 of valve rod circle guide hole, the cross section of friction section is an equilateral triangle 17, valve seat 11 is arranged in the valve body, have on the valve rod match with valve seat spool 12 arranged, an end of valve rod is connected with flexible sheet 13 with pressure pad 18, between a side of flexible sheet and the valve interior wall air chamber 14 is arranged, air chamber has air inlet/outlet 15, in the air chamber, spring 16 is arranged between flexible sheet and the valve interior wall.
The cross section of above-mentioned friction section is an equilateral triangle.The cross section of friction section also can be square, regular pentagon or ellipse.
Among Fig. 3, the valve rod friction section cross section of self-operated flow control valve is a square 19.
Among Fig. 4, the valve rod friction section cross section of self-operated flow control valve is a regular pentagon 20.
Among Fig. 5, the valve rod friction section cross section of self-operated flow control valve is oval 21.
Claims (1)
1. self-operated flow control valve, valve body is arranged, the both sides that valve body is relative have respectively into, water outlet, advancing in the valve body, the pressure flow modulating valve is arranged in the runner between the water outlet, the pressure flow modulating valve has the valve rod on the valve rod base in valve body, the valve rod circle guide hole that has diameter to match on the valve rod base with the diameter of valve rod, valve rod passes from valve rod circle guide hole, valve rod have with valve rod base on the contacted one section friction section of valve rod circle guide hole, valve seat is arranged in the valve body, the spool that matches with valve seat is arranged on the valve rod, one end of valve rod is connected with flexible sheet with pressure pad, between a side of flexible sheet and the valve interior wall air chamber is arranged, and air chamber has air inlet/outlet, in the air chamber, between flexible sheet and the valve interior wall spring is arranged, it is characterized in that: the cross section of friction section is an equilateral triangle, square, regular pentagon or ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200126033U CN201187609Y (en) | 2008-05-09 | 2008-05-09 | Self-operated flow controlling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200126033U CN201187609Y (en) | 2008-05-09 | 2008-05-09 | Self-operated flow controlling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201187609Y true CN201187609Y (en) | 2009-01-28 |
Family
ID=40310631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200126033U Expired - Fee Related CN201187609Y (en) | 2008-05-09 | 2008-05-09 | Self-operated flow controlling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201187609Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269288A (en) * | 2011-05-09 | 2011-12-07 | 博思特能源装备（天津）股份有限公司 | Self-operated axial flow pressure regulating valve capable of being completely opened in case of failure |
| CN103775702A (en) * | 2012-10-22 | 2014-05-07 | 费希尔久安输配设备(成都)有限公司 | Valve |
| CN114294455A (en) * | 2021-12-27 | 2022-04-08 | 温州卓人汽车电控有限公司 | Pressure valve suitable for double-channel opening |
-
2008
- 2008-05-09 CN CNU2008200126033U patent/CN201187609Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269288A (en) * | 2011-05-09 | 2011-12-07 | 博思特能源装备（天津）股份有限公司 | Self-operated axial flow pressure regulating valve capable of being completely opened in case of failure |
| CN103775702A (en) * | 2012-10-22 | 2014-05-07 | 费希尔久安输配设备(成都)有限公司 | Valve |
| CN114294455A (en) * | 2021-12-27 | 2022-04-08 | 温州卓人汽车电控有限公司 | Pressure valve suitable for double-channel opening |
| CN114294455B (en) * | 2021-12-27 | 2024-04-26 | 温州卓人汽车电控有限公司 | Pressure valve suitable for double-channel opening |
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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: 20090128 Termination date: 20100509 |