CN2533348Y - Control valve - Google Patents
Control valve Download PDFInfo
- Publication number
- CN2533348Y CN2533348Y CN 02220153 CN02220153U CN2533348Y CN 2533348 Y CN2533348 Y CN 2533348Y CN 02220153 CN02220153 CN 02220153 CN 02220153 U CN02220153 U CN 02220153U CN 2533348 Y CN2533348 Y CN 2533348Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- cavity
- moving plate
- control valve
- blind hole
- 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 - Lifetime
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- Multiple-Way Valves (AREA)
Abstract
The utility model relates to a control valve including a vale body and a stator, a rotor and a trig switch that are positioned inside the valve body through a pressing nut; wherein, the valve body internally formed a water inlet cavity, a controlling cavity and a water outlet cavity; the controlling cavity is provided with the rotor with a blind hole and with the trig switch which are in transmission; the blind hole is matched with a through hole on the stator fixed inside the valve body; and a pressure balance circuit is arranged between the water inlet cavity and the water outlet cavity. The utility model overcomes the disadvantages of a poor pressure resistance and poor sealing performance of the prior control valve and ensures no change of the sealing performance and rotating moment due to the external pressure change and has the advantages of a simple structure, a strong sealing performance, easy and flexible opening and closing as well as a high reliability.
Description
The utility model relates to a kind of control valve.
Traditional control valve is made up of two-part, and the one, the motionless part that is fixed that is connected with each pipeline, the one, the rotatable part that is connected with shift fork, two-part are assemblied in the valve body by gland nut.Moving plate band one blind hole in this structure drives moving plate by the rotation shift fork, blind hole on the moving plate is communicated with corresponding hole on the stator realize the various functions of needs.When water inlet and outlet pressure was low, its sealability was better, and the rotation shift fork is lighter; But when pressure increases, the power that the makes progress corresponding increase of hydraulic action on moving plate, make moving plate that uptrend be arranged, like this, the sealability of valve will reduce, and situations such as leakage may occur, simultaneously, pressure between shift fork and the gland nut increases, and the situation that electric current increase etc. is unfavorable for the valve proper functioning also can appear in effort when manual when automatically controlled.
The purpose of this utility model is the problem of solve that existing control valve exists withstand voltage low, poor sealing performance.The utility model comprises valve body and is positioned at stator, moving plate and shift fork in the valve body by gland nut, form water-inlet cavity, control chamber and water chamber in the valve body, be provided with the moving plate and the shift fork interlock of blind hole in the control chamber, through hole relative engagement on blind hole and the stator that is fixed in the valve body is provided with the pressure balance runner between water-inlet cavity and control chamber.
The utility model can not change the sealability of valve and moment of rotation with the change of ambient pressure by above-mentioned specific design, have simple in structure, sealability strong, open and close easy and flexible, advantage that reliability is high.
Below in conjunction with drawings and Examples detailed content of the present utility model is described.
Fig. 1 is the utility model embodiment one a structural representation;
Fig. 2 is the utility model embodiment two a structural representation.
As shown in the figure, the utility model comprises valve body 1 and is positioned at stator 3, moving plate 4 and shift fork 5 in the valve body 1 by gland nut 2, be provided with seal ring 12 between valve body 1 and gland nut 2.Form water-inlet cavity 6, control chamber 7 and water chamber 8 in the valve body 1, be provided with the moving plate 4 and shift fork 5 interlocks of blind hole 9 in the control chamber 7, through hole 10 relative engagement on blind hole 9 and the stator 3 that is fixed in the valve body 1, between water-inlet cavity 6 and control chamber 7, be provided with pressure balance runner 11, pressure balance runner 11 can be arranged on valve body 1 wall as shown in Figure 1, also can be arranged on as shown in Figure 2 on the moving plate 4.When high-pressure liquid when water-inlet cavity 6 enters valve body 1, the flow through bottom of moving plate 4 of a part, a part enters control chamber 7 through pressure balance runner 11, like this, two-part up and down of moving plate 4 just form a cavity, and the hydrodynamic pressure that acts on moving plate 4 top and the bottom keeps balance.Because of the area of moving plate 4 upper surfaces is slightly larger than the area of lower surface, when ambient pressure increases, act on the also corresponding small size increase of downward power on the moving plate 4, better when sealability is low than pressure.
Claims (4)
1, a kind of control valve, comprise valve body and be positioned at stator, moving plate and shift fork in the valve body by gland nut, form water-inlet cavity, control chamber and water chamber in the valve body, be provided with the moving plate and the shift fork interlock of blind hole in the control chamber, through hole relative engagement on blind hole and the stator that is fixed in the valve body is characterized in that being provided with pressure balance runner (11) between water-inlet cavity (6) and control chamber (7).
2, control valve according to claim 1 is characterized in that pressure balance runner (11) is arranged on valve body (1) wall.
3, control valve according to claim 1 is characterized in that pressure balance runner (11) is arranged on the moving plate (4).
4,, it is characterized in that between valve body (1) and gland nut (2), being provided with seal ring (12) according to claim 1 or 2 or 3 described control valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220153 CN2533348Y (en) | 2002-04-22 | 2002-04-22 | Control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220153 CN2533348Y (en) | 2002-04-22 | 2002-04-22 | Control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2533348Y true CN2533348Y (en) | 2003-01-29 |
Family
ID=33698501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02220153 Expired - Lifetime CN2533348Y (en) | 2002-04-22 | 2002-04-22 | Control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2533348Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351560C (en) * | 2004-08-06 | 2007-11-28 | 杨晖 | Mini-consumption electric controlling valve |
| CN101523096B (en) * | 2006-09-28 | 2012-04-04 | 亚申科技研发中心（上海）有限公司 | Valve |
-
2002
- 2002-04-22 CN CN 02220153 patent/CN2533348Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351560C (en) * | 2004-08-06 | 2007-11-28 | 杨晖 | Mini-consumption electric controlling valve |
| CN101523096B (en) * | 2006-09-28 | 2012-04-04 | 亚申科技研发中心（上海）有限公司 | Valve |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120422 Granted publication date: 20030129 |
|
| DD01 | Delivery of document by public notice |
Addressee: Yang Runde Document name: Notification of Expiration of Patent Right Duration |