CN2612844Y - Gate valve with double flashboards in parallel - Google Patents
Gate valve with double flashboards in parallel Download PDFInfo
- Publication number
- CN2612844Y CN2612844Y CN 03221866 CN03221866U CN2612844Y CN 2612844 Y CN2612844 Y CN 2612844Y CN 03221866 CN03221866 CN 03221866 CN 03221866 U CN03221866 U CN 03221866U CN 2612844 Y CN2612844 Y CN 2612844Y
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- CN
- China
- Prior art keywords
- valve
- board
- flash
- flashboard
- double
- 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 parallel double flash-board gate valve, which comprise a valve body, a valve cover, a valve seat, a valve stem, a flash-board, a transmission mechanism, a sealing part and an installation part, wherein the flash-board is a double flash-board structure equipped with a wedge inclined plane, which mainly uses a spherical structure on the end of the valve stem, the flash-board is equipped with a guide slot. When a valve is closed, a sphere of the end of the valve stem jacks the wedge flash-board, thereby achieving forced seal, when the valve is opened, a sealing surface of the flash-board and the sealing surface of the valve seat are detached and then lifted, and the guide slot is arranged which is capable of preventing the flash-board from rotating, so in the whole opening-closing process, wear between the sealing surfaces of the valve is small, thereby achieving the advantages of reliable sealing performance and long service life of products.
Description
Technical field
The utility model relates to a kind of valve, specifically about a kind of parallel double-flashboard gate valve.
Background technique
Problems such as the structure of tradition gate valve flashboard is to strut with spring in the middle of the double-flashboard, and the sealing surface of the sealing surface of flashboard and valve seat has the wearing and tearing existence in the opening-closing process of gate valve, causes sealing surface wear fast, and valve working life is low.In order to solve the wear problem of sealing surface of the discharge gate, the double-flashboard gate valve that extruding/shrinking type occurred, utilize cooperating between wedge shape inclined-plane and the wedge-shaped blocks that is fixed on the valve rod end in the middle of two flashboards, sealing surface disengaged earlier when flashboard was opened, reduce the wearing and tearing between the sealing surface, still, the gate valve of this structure is when opening, its flashboard can rotate at circumferencial direction, and sealing surface is worn and torn.
The model utility content
The purpose of this utility model is the problem that exists at prior art, provides a kind of sealing surface wear little, the parallel double-flashboard gate valve of valve long service life.
The technological scheme that realizes the utility model purpose comprises valve body, valve gap, valve seat, valve rod, flashboard, driving mechanism and Sealing and assembling set, flashboard is the middle double-flashboard structure that is shaped on the wedge shape inclined-plane, spherical structure is adopted in the end that mainly is valve rod, and flashboard is provided with guide groove.
The utility model beneficial effect compared with prior art is: when valve closing, the sphere of valve rod end withstands the wedge shape flashboard, reach forced seal, when valve opening, flashboard sealing surface and sealing surface of seat break away from earlier, the back promotes, and the setting of guide groove has prevented the rotation of flashboard, so the wearing and tearing between the valve sealing face are little in whole opening-closing process, sealability is reliable, long product lifecycle.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Parallel double-flashboard gate valve as shown in Figure 1, comprise valve body 1, valve gap 2, valve seat 3, valve rod 4, flashboard 5, driving mechanism and Sealing and assembling set, flashboard 5 is the middle double-flashboard structure that is shaped on the wedge shape inclined-plane, and spherical structure is adopted in the end of valve rod 4, and flashboard 5 is provided with guide groove.Valve rod 4 end sphericals contact mutually with the wedge shape inclined-plane of two flashboards, 5 centres, guide groove is arranged on the inboard of two flashboards 5, valve rod 4 lower ends are provided with the guiding device that matches with guide groove, this guiding device can be the cylndrical surface that cooperatively interacts with guide groove that valve rod 4 lower end sphericals are made above, realization is to flashboard 5 guide movements, and guide groove also can be arranged on the guide movement that limits flashboard 5 on the valve body.
Claims (4)
1, a kind of parallel double-flashboard gate valve, comprise valve body (1), valve gap (2), valve seat (3), valve rod (4), flashboard (5), driving mechanism and Sealing and assembling set, flashboard (5) is the middle double-flashboard structure that is shaped on the wedge shape inclined-plane, spherical structure is adopted in the end that it is characterized in that valve rod (4), and flashboard (5) is provided with guide groove.
2, parallel double-flashboard gate valve according to claim 1 is characterized in that guide groove is arranged on the inboard of two flashboards (5), and valve rod (4) lower end is provided with the guiding device that matches with guide groove.
3, parallel double-flashboard gate valve according to claim 1 is characterized in that guide groove is arranged on the valve body.
4, parallel double-flashboard gate valve according to claim 2 is characterized in that guiding device is the cylndrical surface that cooperatively interacts with guide groove that valve rod (4) lower end spherical is made above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221866 CN2612844Y (en) | 2003-05-14 | 2003-05-14 | Gate valve with double flashboards in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221866 CN2612844Y (en) | 2003-05-14 | 2003-05-14 | Gate valve with double flashboards in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2612844Y true CN2612844Y (en) | 2004-04-21 |
Family
ID=34162400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221866 Expired - Fee Related CN2612844Y (en) | 2003-05-14 | 2003-05-14 | Gate valve with double flashboards in parallel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2612844Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404928C (en) * | 2006-01-18 | 2008-07-23 | 胡金木 | High-temperature high-pressure self-sealing gate valve with double flat shutter board |
| CN104832667A (en) * | 2015-04-29 | 2015-08-12 | 苏州福润机械有限公司 | Parallel dual-gate valve |
| CN109654238A (en) * | 2019-01-02 | 2019-04-19 | 盐城宝德冶金设备有限公司 | Coal gas supports valve |
-
2003
- 2003-05-14 CN CN 03221866 patent/CN2612844Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404928C (en) * | 2006-01-18 | 2008-07-23 | 胡金木 | High-temperature high-pressure self-sealing gate valve with double flat shutter board |
| CN104832667A (en) * | 2015-04-29 | 2015-08-12 | 苏州福润机械有限公司 | Parallel dual-gate valve |
| CN109654238A (en) * | 2019-01-02 | 2019-04-19 | 盐城宝德冶金设备有限公司 | Coal gas supports valve |
| CN109654238B (en) * | 2019-01-02 | 2024-02-13 | 盐城宝德冶金设备有限公司 | Gas supporting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |