CN2240653Y - Plain plate gate valve - Google Patents
Plain plate gate valve Download PDFInfo
- Publication number
- CN2240653Y CN2240653Y CN 95226065 CN95226065U CN2240653Y CN 2240653 Y CN2240653 Y CN 2240653Y CN 95226065 CN95226065 CN 95226065 CN 95226065 U CN95226065 U CN 95226065U CN 2240653 Y CN2240653 Y CN 2240653Y
- Authority
- CN
- China
- Prior art keywords
- valve
- gate plate
- voussoir
- sealing
- flashboard
- 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
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- Sliding Valves (AREA)
Abstract
The utility model relates to a flat plate gate valve belonging to a gate valve whose structure comprises a valve body, a valve seat, a gate plate, a valve rod, a valve cover, an operating component, a sealing component, etc. The gate plate is an assembling component, which comprises a wedge block, a left gate plate and a right gate plate. The wedge block, the left gate plate and the right gate plate form a movable auxiliary to form a telescoping mechanism to enable the left gate plate and the right gate plate can be tightly closed to the sealing surface of the valve body to close the valve and upward move to open the valve after leaving the sealing surface in the process of opening and closing the valve. Rubbing action dose not exist among sealing auxiliaries. The sealing surface is uneasy to appear abrasion. The sealing is reliable and the service life is long. The utility model is suitable for the pipelines of various medium to be used for opening and closing.
Description
The utility model relates to a kind of valve, particularly a kind of gate valve.
Gate valve is as the usefulness of passing through or cut off medium on pipeline.The flashboard of existing gate valve is a wedge-shaped structure, two sealing seats of valve body are wedge shape too, flashboard is in opening (or closing) process, and get loose while rubbing with sealing surface of seat (or compressing) makes that the sealing pair wearing and tearing are more serious, be prone to seepage, reliability and working life that influence is used, and the wedge shape draft angle required precision height of two sealing surface of seats, must be by high-precision special tool anchor clamps, processing is difficulty and time-consuming relatively, and manufacture cost is higher.
The purpose of this utility model provide a kind of wear and tear little, sealing is reliable, the gate valve of long service life.
The utility model structure is made up of valve body (1), two valve seats (2), flashboard (3), valve rod (4), valve gap (5), operation piece, Sealing etc., flashboard (3) is an assembly parts, comprise voussoir (32), left and right flashboard (31), voussoir (32) is formed sliding pair with left and right flashboard (31) respectively, voussoir both sides gradient is consistent with left and right flashboard (31) gradient, the distribution that is parallel to each other of two valve seats (2) sealing surface, the downside between two valve seats on the valve body (1) has positioning boss (A) respectively.
The utility model is because flashboard (3) is an assembly parts, adopt shrinking structure, valve is in opening-closing process, do not have between left and right flashboard (31) and two valve seats (2) sealing surface and radially relatively move, thereby do not have the activity rubbing action, sealing surface is not easy to wear, is not prone to seepage, use reliably long service life.Simultaneously, because two sealing surface of seats are parallel to each other, promptly perpendicular with the access way center line, easy to process, precision guarantees easily, makes that the utility model processing is more convenient.
Accompanying drawing is the utility model embodiment partial sectional view.
Now in conjunction with the accompanying drawings the utility model is further specified.Flashboard (3) is an assembly parts, voussoir wherein (32) can have multiple structural type with the sliding pair that left and right flashboard (31) is formed, a kind of is as shown in the drawing, there is long recess (B) voussoir (32) both sides, band neck projection (C) is arranged on the left and right flashboard (31), and projection (C) inserts in the long recess (B), and is fastened by the baffle plate (33) that links together with voussoir (32), make voussoir (32) form sliding pair with left and right flashboard (31) respectively, and make the three form extending means integral body.Also can be in long recess (B) be equipped with stage clip (34) between upper top position and the projection (C), make voussoir (32) when last moving, press down left and right flashboard (31), left and right flashboard (31) moves on breaking away from again with lock seat sealing surface earlier.Another kind is that left and right flashboard comprises voussoir, makes the three form extending means by link and spring.The linkage structure of valve rod (4) and voussoir (32), valve gap (5), the Placement of two valve seats (2) and valve gap (5) and valve body (1) can be identical with common gate valve, also can change to some extent.
The valve opening and closing movement process is as follows: promote flashboard (3) when moving down when valve rod (4) moves down, after left and right flashboard (31) contact valve body (1) is gone up positioning boss (A), left and right flashboard (31) no longer moves down, and voussoir (32) continues to move down along with moving down of valve rod (4), because voussoir (32) ramp effect, left and right flashboard (31) is stretched out to two sides, be close to two valve seats (2) sealing surface, form sealing, cut off the circulation of medium, valve closing.When moving on the valve rod (4), voussoir (32) with on move, left and right flashboard (31) is because initial supreme the moving of comprehensive function of deadweight or deadweight and stage clip, contraction is drawn close and to voussoir (32) center, throw off two sealing surface of seats, afterwards then with moving on the voussoir (32) and on move, valve opening, medium passes through.
Claims (3)
1, plate valve, structure is made up of valve body (1), two valve seats (2), flashboard (3), restrictor bar (4), valve gap (5), operation piece, Sealing etc., it is characterized in that: flashboard (3) is an assembly parts, comprise voussoir (32), left and right flashboard (31), voussoir (32) is formed sliding pair with left and right flashboard (31) respectively, voussoir (32) both sides gradient is consistent with the gradient of left and right flashboard (31), two valve seats (2) sealing plane is parallel to each other, and the downside between two valve seats (2) on the valve body (1) has positioning boss (A) respectively.
2, gate valve according to claim 1, it is characterized in that there is long recess (B) voussoir (32) both sides, band neck projection (C) is arranged on the left and right flashboard (31), and projection (C) inserts in the long recess (B), and is fastened by the baffle plate (33) that links together with voussoir (32).
3, gate valve according to claim 2 is characterized in that being equipped with stage clip (34) between the upper top position and projection (C) in long recess (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226065 CN2240653Y (en) | 1995-11-01 | 1995-11-01 | Plain plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226065 CN2240653Y (en) | 1995-11-01 | 1995-11-01 | Plain plate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2240653Y true CN2240653Y (en) | 1996-11-20 |
Family
ID=33872308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95226065 Expired - Fee Related CN2240653Y (en) | 1995-11-01 | 1995-11-01 | Plain plate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2240653Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381734C (en) * | 2006-03-02 | 2008-04-16 | 沈惠冲 | Assembled gas valve with inserted plate |
| CN100419313C (en) * | 2006-10-21 | 2008-09-17 | 辽宁辽兴石油机械有限公司 | Double seal gate valve |
| CN103470797A (en) * | 2013-09-24 | 2013-12-25 | 宣达实业集团有限公司 | Friction-free flat gate valve resistant to high temperature and high pressure |
| CN106704618A (en) * | 2016-12-26 | 2017-05-24 | 凯喜姆阀门有限公司 | High-performance gate valve |
| CN108506509A (en) * | 2018-06-27 | 2018-09-07 | 上海阀门厂股份有限公司 | A kind of gate valve sealing structure |
| CN114719040A (en) * | 2022-04-11 | 2022-07-08 | 浙江伯特利科技股份有限公司 | Flashboard of support-shrinkage type wedge gate valve and machining method thereof |
-
1995
- 1995-11-01 CN CN 95226065 patent/CN2240653Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381734C (en) * | 2006-03-02 | 2008-04-16 | 沈惠冲 | Assembled gas valve with inserted plate |
| CN100419313C (en) * | 2006-10-21 | 2008-09-17 | 辽宁辽兴石油机械有限公司 | Double seal gate valve |
| CN103470797A (en) * | 2013-09-24 | 2013-12-25 | 宣达实业集团有限公司 | Friction-free flat gate valve resistant to high temperature and high pressure |
| CN106704618A (en) * | 2016-12-26 | 2017-05-24 | 凯喜姆阀门有限公司 | High-performance gate valve |
| CN106704618B (en) * | 2016-12-26 | 2023-02-14 | 凯喜姆阀门有限公司 | High-performance gate valve |
| CN108506509A (en) * | 2018-06-27 | 2018-09-07 | 上海阀门厂股份有限公司 | A kind of gate valve sealing structure |
| CN114719040A (en) * | 2022-04-11 | 2022-07-08 | 浙江伯特利科技股份有限公司 | Flashboard of support-shrinkage type wedge gate valve and machining method thereof |
| CN114719040B (en) * | 2022-04-11 | 2023-06-16 | 浙江伯特利科技股份有限公司 | Gate plate of telescopic wedge gate valve and processing method thereof |
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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 |