CN2240652Y - Plain plate gate valve - Google Patents
Plain plate gate valve Download PDFInfo
- Publication number
- CN2240652Y CN2240652Y CN 95226064 CN95226064U CN2240652Y CN 2240652 Y CN2240652 Y CN 2240652Y CN 95226064 CN95226064 CN 95226064 CN 95226064 U CN95226064 U CN 95226064U CN 2240652 Y CN2240652 Y CN 2240652Y
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- right sides
- voussoir
- gate
- 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
Links
Abstract
The utility model relates to a plain plate gate valve belonging to the gate valve class. The structure comprises a valve body, a valve seat, a gate plate, a valve handle, a valve cover, an operating component, a sealing component, etc. The gate plate is an assembly, which comprises a wedge block, a left gate plate, a right gate plate, a left support frame and a right support frame to form a telescoping mechanism to enable the left gate plate and the right plate to leave or tightly close to the sealing surface of the valve seat in the opening process or the closing process of the valve. The abrasion of a sealing auxiliary is reduced to enable the gate valve to obtain reliable sealing and long service life. 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 suitable on the medium pipelines such as vapour, liquid, does to open and close and uses.Existing gate valve, its flashboard are wedge-shaped structure, and two valve base sealing planes also form wedge shape, key groove is generally 3 °～5 °, flashboard is in opening-closing process, and is serious with the sealing surface of seat friction, makes the sealing pair wearing and tearing, easily cause seepage, reliability and life-span that influence is used, and the key groove required precision height of two lock seat sealing planes, valve seat processing must be with the special tool anchor clamps, processing is difficulty and time-consuming, and manufacture cost is higher.
The purpose of this utility model provides that the wearing and tearing of a kind of sealing pair are little, sealing is reliable, the gate valve of long service life.
The utility model structure is by valve body (1), two valve seats (2), flashboard (3), valve rod (4), valve gap (5), composition such as operation piece and Sealing, its key problem in technology is that flashboard (3) is an assembly parts, comprise voussoir (33), left and right sides flashboard (31), about support frame (32), voussoir (33) has open-work, left and right sides flashboard has the coupling shaft that matches with open-work on (31), about support frame (32) and place respectively between left and right sides flashboard (31) and the voussoir (33), about the support frame draft angle consistent with the draft angle of voussoir (33), valve body (1) go up about support frame (32) downside positioning boss (A) is arranged, the distribution that is parallel to each other of two valve seats (2) sealing plane.
The utility model is because flashboard (3) is an assembly parts, voussoir wherein (33) and about support frame (32) draft angle can design greatlyyer, make voussoir (33) that less displacement be arranged, supportting frame (32) about just can making has enough contractions and stretchs out distance, thereby the amount of movement of left and right sides flashboard (31) when contacting the back to certain specific pressure with two valve seats (2) that moves up and down synchronously with voussoir (33) reduced significantly, so just can alleviate the friction level of left and right sides flashboard (31) and two valve seats (2) greatly, thereby the sealing pair wearing and tearing are little, the sealing reliability and the working life of having improved gate valve.Again because the distribution that is parallel to each other of two valve seats (2) sealing plane, make easy to processly, improved the processibility of valve greatly.
Accompanying drawing is the utility model embodiment partial sectional view.
Now in conjunction with the accompanying drawings the running of above-mentioned technical solution of the present utility model is illustrated with relevant situation.
Running is: move down at valve rod (4) and promote in the process that flashboard (3) assembly parts moves down, about support frame (32) and after contact positioning boss (A), can not continue to move down, shifting movement is stretched out to both sides because of its wedge effect supports frame (32) about making under the continuation of voussoir (33), thereby promote left and right sides flashboard (31) and push down two valve seats (2), valve closing reaches the purpose of sealing.Otherwise, on moving voussoir (33) of the last shipper pole of valve rod (4) and left and right sides flashboard (31), move, because of about support frame (32) deadweight and wedge effect, left and right sides flashboard (31) has small contour projector in opposite directions last moving past in the journey, throw off valve seat, afterwards with moving on the valve rod (4) and drive on flashboard (3) assembly parts and move valve opening.
Valve gap (5) is connected with valve body (1), being connected of the voussoir (33) in valve rod (4) and flashboard (3) assembly parts and valve gap (5), operation piece, and the layout of Sealing can be consistent with common Wedge gate valve, also suitable change can be arranged.Key of the present utility model is to narrate in the above-mentioned technical solution, its flashboard (3) assembly parts by voussoir (33), left and right sides flashboard (31) and about support frame (32) and form, coupling shaft on the left and right sides flashboard (31) inserts in voussoir (33) open-work, can move left and right, also can rotate.About support frame (32) for frame shape structure, be enclosed within on the outer wall of voussoir (33) open-work, and place between voussoir (33) and the left and right sides flashboard (31), so just formed simple extending means.The key groove of voussoir (33) can strengthen significantly than the key groove of Wedge gate valve, can be designed to an angle between 14 ° to 30 °, the draft angle (α) that also is voussoir (33) is between 7 ° to 15 °, in this angular interval, effect is all relatively good, certainly leave this interval, need only draft angle, all be fine less than 45 ° greater than Wedge gate valve.In addition, being built-in with extension spring (34) at voussoir (33) open-work, fixedlys connected with left and right sides flashboard (31) or its coupling shaft respectively in the two ends of extension spring (34).Can make the hole on the coupling shaft of left and right sides flashboard (31), extension spring (34) is stretched in the hole of coupling shaft, is fixed by lock screw.Like this, left and right sides flashboard (31) all is in the state that tightly inwardly shrinks when opening or in closing closed procedure, in order to more timely disengaging two sealing surface of seats of left and right sides flashboard (31), more favourablely alleviates friction, reduces the wearing and tearing of sealing pair.Simultaneously, friction ribs (B) is arranged on the valve body (1), left and right sides flashboard (31) is a disc, and its disk periphery contacts with friction ribs (B) respectively.Like this, in the process that flashboard (3) assembly parts moves up and down, left and right sides flashboard (31) has irregular rotation, forms left and right sides flashboard (31) and contacts with the non-location of two sealing surface of seats, more helps the reliability that seals and the raising in working life.
Claims (5)
1, a kind of by valve body (1), two valve seats (2), flashboard (3), valve rod (4), valve gap (5), the plate valve that operation piece and Sealing etc. are formed, it is characterized in that flashboard (3) is an assembly parts, comprise voussoir (33), left and right sides flashboard (31), about support frame (32), voussoir (33) has open-work, left and right sides flashboard has the coupling shaft that matches with open-work on (31), about support frame (32) and place respectively between left and right sides flashboard (31) and the voussoir (33), about to support the draft angle of frame (32) consistent with the draft angle of voussoir (33), valve body (1) go up about support frame (32) downside positioning boss (A) is arranged, the distribution that is parallel to each other of two valve seats (2) sealing plane.
2, gate valve according to claim 1, the draft angle (α) that it is characterized in that described voussoir (33) is 7 ° to 15 °.
3, gate valve according to claim 1 and 2 is characterized in that being built-in with extension spring (34) at described voussoir (33) open-work, fixedlys connected with left and right sides flashboard (31) respectively in its two ends.
4, gate valve according to claim 1 and 2 is characterized in that friction ribs (B) is arranged on valve body (1), left and right sides flashboard (31) is a disc, and its disk periphery contacts with friction ribs (B) respectively.
5, gate valve according to claim 3 is characterized in that friction ribs (B) is arranged on valve body (1), left and right sides flashboard (31) is a disc, and its disk periphery contacts with friction ribs (B) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226064 CN2240652Y (en) | 1995-11-01 | 1995-11-01 | Plain plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226064 CN2240652Y (en) | 1995-11-01 | 1995-11-01 | Plain plate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2240652Y true CN2240652Y (en) | 1996-11-20 |
Family
ID=33872307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95226064 Expired - Lifetime CN2240652Y (en) | 1995-11-01 | 1995-11-01 | Plain plate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2240652Y (en) |
Cited By (4)
| 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 |
| CN101915319A (en) * | 2010-08-06 | 2010-12-15 | 浙江德卡控制阀仪表有限公司 | Parallel double-supporting plate gate valve |
| CN102392900A (en) * | 2011-11-09 | 2012-03-28 | 冈野集团有限公司 | Flat gate valve |
| CN102292580B (en) * | 2009-02-10 | 2013-11-20 | 泰科阀门控制有限合伙公司 | Gate valve with integrated support members |
-
1995
- 1995-11-01 CN CN 95226064 patent/CN2240652Y/en not_active Expired - Lifetime
Cited By (4)
| 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 |
| CN102292580B (en) * | 2009-02-10 | 2013-11-20 | 泰科阀门控制有限合伙公司 | Gate valve with integrated support members |
| CN101915319A (en) * | 2010-08-06 | 2010-12-15 | 浙江德卡控制阀仪表有限公司 | Parallel double-supporting plate gate valve |
| CN102392900A (en) * | 2011-11-09 | 2012-03-28 | 冈野集团有限公司 | Flat gate 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 |