CN2349409Y - Internal wedged parallel type double gate boards for gate valve - Google Patents
Internal wedged parallel type double gate boards for gate valve Download PDFInfo
- Publication number
- CN2349409Y CN2349409Y CN 98242424 CN98242424U CN2349409Y CN 2349409 Y CN2349409 Y CN 2349409Y CN 98242424 CN98242424 CN 98242424 CN 98242424 U CN98242424 U CN 98242424U CN 2349409 Y CN2349409 Y CN 2349409Y
- Authority
- CN
- China
- Prior art keywords
- board
- gate
- gate board
- main gate
- valve
- 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
Links
Abstract
The utility model relates to an internal wedged parallel type double gate board for a gate valve, which is mainly composed of a main gate board and a secondary gate plate. The upper end of the main gate plate is connected with a valve rod, the main gate board and the subsidiary gate board are provided with corresponding wedge surfaces, the obliquity of the two wedge surfaces is identical, and the two wedge surfaces can be attached to each other; the inner side surfaces of the main gate board and the subsidiary gate board are respectively provided with a pin and a guide groove, and the inner side surfaces are provided with the wedge surfaces; the front and the back side surfaces of the main gate board and the subsidiary gate board are provided with clamping springs which enables the main gate board and the subsidiary gate board can be attached to each. The utility model has the advantages that the structure is simple, the fabricating process is convenient, the cost is low, the two-way opening and closure can be realized, the sealing performance is reliable, the utility model has the function so flushing corrosion and corrosion, and the service life is long. The utility model can be used for various high, middle, and low pressure valves.
Description
The utility model relates to the internal wedged parallel type double-flashboard of a kind of parts of valve, particularly a kind of gate valve.
The double-flashboard structure of existing gate valve is divided into two big classes, and a class is outer wedge-type double-flashboard, and another kind of is the parallel type double-flashboard.Two outer wedge surfaces of outer wedge-type double-flashboard and valve seat are fitted, and to eliminate the gap of flashboard and valve seat, reach the purpose of sealing.But this structure is complicated, and number of parts is many, the technological requirement height of flashboard, manufacture difficulty is big, it is big to open moment, the moment of gate opening sealing surface be easy to wearing and tearing, scratch, the working life of flashboard valve seat is short, only is applicable to the mesolow valve.Parallel type double-flashboard, its structure are to fit for parallel surface between flashboard and the valve seat, and a voussoir is arranged on the valve rod, and voussoir places in the middle of two flashboards, and valve rod promotes two parallel flashboards to eliminate the gap of flashboard and valve base chamber by voussoir, reaches the purpose of sealing.But the complex structure of this parallel type double-flashboard, the junction plane between flashboard and top wedge is little, the flashboard instability, and only be applicable to low pressure valve.Also having a kind of parallel type double-flashboard, is between two flashboards spring to be set, and relies on the pressure of medium that flashboard is pressed to the outlet side sealing surface of seat, thereby reaches the purpose of single face sealing.This structured media pressure is little, and sealing surface easily is scratched and weares and teares during valve opening and closing, complex structure, and the stability of flashboard is poor.More than several double-flashboard structures, in use all exist low pressure seepage, sealing just and be difficult for the problem that forms.
The purpose of this utility model provides a kind of internal wedged parallel type double-flashboard of simple in structure, the reliable gate valve of sealability.Technical solution of the present utility model is: it mainly is made up of main gate-board, auxiliary gate-board; The upper end of main gate-board links to each other with the valve rod of valve, and main gate-board and auxiliary gate-board are provided with corresponding wedge surface, and two wedge surface gradients equate, and can fit mutually; Be respectively equipped with pin and guiding groove on the inner side surface of the band wedge surface of main gate-board and auxiliary gate-board, pin can slide in guiding groove; The bi-side, front and back of main gate-board and auxiliary gate-board are provided with the jump ring that it is fitted mutually.
The utility model has the advantages that: simple in structure, manufacturing process is easy, cost is low, can realize two-way keying, and sealability is reliable, erosion resistance, corrosion, and long service life is applicable to various high, normal, basic pressure valves.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment I;
Fig. 2 is the structural representation of the utility model embodiment II.
Below in conjunction with accompanying drawing the utility model and embodiment are described in further detail:
Embodiment's I, the utility model mainly are made up of main gate-board 2, auxiliary gate-board 3.The upper end of main gate-board 2 links to each other with the valve rod of valve 1, promotes flashboard by valve rod 1 and moves up and down.Two outer side surfaces on main gate-board 2 and the auxiliary gate-board 3, that fit with valve seat are parallel to each other, and are respectively equipped with the mutual wedge surface that also can fit mutually corresponding, that the wedge degree equates on the inner side surface of main gate-board 2 and auxiliary gate-board 3, and its wedge surface is unidirectional wedge surface.The inner side surface of the band wedge surface of main gate-board 2 is provided with three pins 6, and correspondence is provided with three guiding grooves on the inner side surface of the band wedge surface of auxiliary gate-board 3, and pin 6 can slide in guiding groove.The bi-side, front and back of main gate-board 2 and auxiliary gate-board 3 are provided with the jump ring 4 that major and minor flashboard 2,3 is fitted mutually, and jump ring 4 is fixed on main gate-board 2 and the auxiliary gate-board 3 by screw 5.During valve working, under the effect of the axial force of valve rod 1, main valve plate 2 relies on pins 6 and jump ring 4 that auxiliary gate-board is promoted to move down, when the lower end of auxiliary gate-board 3 reaches the valve body bottom, major and minor flashboard is adjacent to valve seat along the direction vertical with valve rod 1 axial force direction, guarantees sealing.After the axial force of valve rod 1 was removed, the elastic force of jump ring 4 made major and minor flashboard return to original state at once.
Embodiment's II, the wedge surface on main gate-board 2 and the auxiliary gate-board 3 is two-way wedge surface.
Claims (1)
1, a kind of internal wedged parallel type double-flashboard of gate valve mainly is made up of main gate-board, auxiliary gate-board, and the upper end of main gate-board links to each other with the valve rod of valve, it is characterized in that: main gate-board and auxiliary gate-board are provided with corresponding wedge surface, and two wedge surface gradients equate, and can fit mutually; Be respectively equipped with pin and guiding groove on the inner side surface of the band wedge surface of main gate-board and auxiliary gate-board, pin can slide in guiding groove; The bi-side, front and back of main gate-board and auxiliary gate-board are provided with the jump ring that it is fitted mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98242424 CN2349409Y (en) | 1998-10-19 | 1998-10-19 | Internal wedged parallel type double gate boards for gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98242424 CN2349409Y (en) | 1998-10-19 | 1998-10-19 | Internal wedged parallel type double gate boards for gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2349409Y true CN2349409Y (en) | 1999-11-17 |
Family
ID=33988991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98242424 Expired - Fee Related CN2349409Y (en) | 1998-10-19 | 1998-10-19 | Internal wedged parallel type double gate boards for gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2349409Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007131388A1 (en) * | 2006-05-15 | 2007-11-22 | Yongsheng Song | Vavle |
| CN101949456A (en) * | 2010-09-20 | 2011-01-19 | 伯特利阀门集团有限公司 | Expansion flat gate valve |
| CN103375599A (en) * | 2012-04-21 | 2013-10-30 | 潘远志 | Metal seal flat valve |
| CN103727253A (en) * | 2013-10-18 | 2014-04-16 | 嘉兴五洲阀门有限公司 | Double-plate structure of flat gate valve |
| CN104214357A (en) * | 2014-08-29 | 2014-12-17 | 苏州福润机械有限公司 | Gate valve |
| CN104652351A (en) * | 2015-02-05 | 2015-05-27 | 四川省建筑科学研究院 | Constant-flow automatic ecological discharge method and constant-flow automatic ecological discharge device |
| CN107061776A (en) * | 2017-04-25 | 2017-08-18 | 重庆科特工业阀门有限公司 | Force Double-sealing plate sluice valve |
-
1998
- 1998-10-19 CN CN 98242424 patent/CN2349409Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007131388A1 (en) * | 2006-05-15 | 2007-11-22 | Yongsheng Song | Vavle |
| CN101949456A (en) * | 2010-09-20 | 2011-01-19 | 伯特利阀门集团有限公司 | Expansion flat gate valve |
| CN103375599A (en) * | 2012-04-21 | 2013-10-30 | 潘远志 | Metal seal flat valve |
| CN103727253A (en) * | 2013-10-18 | 2014-04-16 | 嘉兴五洲阀门有限公司 | Double-plate structure of flat gate valve |
| CN104214357A (en) * | 2014-08-29 | 2014-12-17 | 苏州福润机械有限公司 | Gate valve |
| CN104652351A (en) * | 2015-02-05 | 2015-05-27 | 四川省建筑科学研究院 | Constant-flow automatic ecological discharge method and constant-flow automatic ecological discharge device |
| CN107061776A (en) * | 2017-04-25 | 2017-08-18 | 重庆科特工业阀门有限公司 | Force Double-sealing plate sluice valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU PROVINCE HUAIHAI PETROLEUM MACHINERY CO., Free format text: FORMER NAME OR ADDRESS: JIANGSU PROVINCIAL STATE-RUN HUAIHAI PETROLEUM MACHINERY FACTORY |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Jiangsu state owned Huaihai Petroleum Machinery Co., Ltd. Patentee before: Jiangsu Provincial State-Run Huaihai Petroleum Machinery Factory |
|
| 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 |