CN2493788Y - Prop open type gate valve - Google Patents
Prop open type gate valve Download PDFInfo
- Publication number
- CN2493788Y CN2493788Y CN 01244446 CN01244446U CN2493788Y CN 2493788 Y CN2493788 Y CN 2493788Y CN 01244446 CN01244446 CN 01244446 CN 01244446 U CN01244446 U CN 01244446U CN 2493788 Y CN2493788 Y CN 2493788Y
- Authority
- CN
- China
- Prior art keywords
- board
- gate
- valve
- flashboard
- major
- 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 prop open type gate valve including a valve body, a valve cover, a valve rod and a handwheel. Flashboards are two major and minor flashboards matched with each other. The major flashboard is connected with the valve rod and the inner end surface of the major flashboard is V-shaped concave. The outer end surface is sealed and matched with a valve seat plane at one side. The inner end surface of the minor flashboard is a V-shaped convexity that is in clearance cooperation with the V-shaped concave of the major flashboard. The outer end surface of the minor flashboard is sealed and matched with the valve seat plane at the other side. The major and minor flashboards are provided with a stream guidance hole. And both of the upper and lower ends of the minor flashboard exceed the major flashboard. The utility model has the advantages of portable use, small seal surface abrasion and good seal performance.
Description
The utility model relates to a kind of gate valve.
In the valve of fluid line, the flow coefficient maximum of gate valve, but the ubiquity sealing is relatively poor.Because in the switching process, the sealing surface wear of flashboard and valve seat is bigger, easily scratch, and flowing medium also can reduce sealability to the sealing surface impingment corrosion.
The utility model purpose is a kind of good seal performance of design, the gate valve that sealing face damage is little.
The utility model comprises valve body, valve gap, valve rod and handwheel, flashboard then comprises main gate-board and the auxiliary gate-board that matches, and the main gate-board upper end is connected with the valve rod lower end, and the inner end of main gate-board is the V-arrangement concave surface, side valve seat plane sealing in exterior edge face and the valve body cooperates, and main gate-board also is provided with pod apertures; Auxiliary gate-board exterior edge face and opposite side valve seat planes are sealed and matched, and inner end is V-arrangement convex surface and main gate-board and V-arrangement concave surface Spielpassung, and auxiliary gate-board is provided with corresponding pod apertures equally, and auxiliary gate-board all exceeds main gate-board in two ends up and down.
The utility model is when closing, and valve rod drives main gate-board and moves, and main gate-board drives auxiliary gate-board by the V-arrangement fitting surface.The underpart of auxiliary gate-board contacts earlier static with the stroke end, main gate-board then continues to move, and by the effect of V-arrangement face the major-minor flashboard is strutted to the valve seat of both sides and compresses sealing.During unlatching, similar process, the pod apertures on the major-minor flashboard and the medium channel of valve body overlap.The major-minor flashboard in moving and the friction of valve seat very little, and no matter open and close, flashboard all covers valve seat, avoids the impingment corrosion of medium, and sealability is improved.
Further specify the utility model below in conjunction with drawings and Examples.
Fig. 1 is embodiment's a plan view;
Fig. 2 is that the A of main gate-board among Fig. 1 is to view.
As shown in the figure, be connected with valve gap 7 on the valve body 6, valve rod 3 upper ends are connected with handwheel 11.Flashboard comprises main gate-board 1 and the auxiliary gate-board 2 that matches.Upper end on the main gate-board is connected with valve rod 3 lower ends, and the inner end of main gate-board 1 is the V-arrangement concave surface, and a side valve seat 4 plane sealings in exterior edge face and the valve body 6 cooperate, and also are provided with pod apertures 10 on main gate-board 1.The inner end of auxiliary gate-board 2 is the V-arrangement concave surface Spielpassung of V-arrangement convex surface and main gate-board 1.The exterior edge face of auxiliary gate-board 2 then cooperates with valve seat 4 plane sealings of opposite side.Equally, correspondingly on the auxiliary gate-board 2 be provided with pod apertures 10, and the upper and lower end of auxiliary gate-board 2 all exceeds main gate-board 1.During unlatching, the major-minor flashboard rises, and auxiliary gate-board 2 upper ends contact static with valve gap 7 earlier, main gate-board 1 continues upwards to be drawn by valve rod 3, by the V-arrangement fitting surface major-minor lock is strutted to both sides valve seat 4 and to compress, the medium channel of pod apertures 10 on the major-minor flashboard and valve body 6 overlaps simultaneously, and medium is passed through.When closing, be that the lower end of auxiliary gate-board 2 seals earlier with after valve body 6 contacts again too.Owing to adopted valve seat 4 two way sealeds of both sides, the flowing medium direction changes the sealing effect that does not also influence present embodiment.Main gate-board 1 and auxiliary gate-board 2 can be provided with torsion spring 8 and tightly touch mutually in the side, major-minor flashboard and valve seat 4 are almost contactless in moving process like this, make friction still less, move also lighter.Can be provided with seal ring 5 on the valve seat 4, make sealability better like this, safeguard also more convenient.Be provided with recessed 9 in the corresponding position in valve body 6 bottoms and auxiliary gate-board 2 lower end surfaces, making when closing main gate-board 1 move down the space increases.When after long-term the use, seepage occurring, main gate-board more than 1 is moved down a bit, compress valve seat, reduce seepage even the major-minor flashboard struts a bit again.
Claims (5)
1, a kind of bracing type gate valve, comprise valve body, valve gap, valve rod and handwheel, flashboard is connected with valve rod, it is characterized by: flashboard comprises main gate-board (1) and the auxiliary gate-board (2) that matches, main gate-board (1) upper end is connected with valve rod (3) lower end, the inner end of main gate-board (1) is the V-arrangement concave surface, and side valve seat (4) plane sealing in exterior edge face and the valve body (6) cooperates, and main gate-board (1) also is provided with pod apertures (10); Auxiliary gate-board (2) exterior edge face and opposite side valve seat (4) plane sealing cooperate, inner end is the V-arrangement convex surface, and main gate-board (1) and V-arrangement concave surface Spielpassung, auxiliary gate-board (2) is provided with corresponding pod apertures (10) equally, and auxiliary gate-board (2) all exceeds main gate-board (1) in two ends up and down.
2, bracing type gate valve according to claim 1 is characterized by: main gate-board (1) and auxiliary gate-board (2) tightly touch mutually by the torsion spring (8) that is located on the side.
3, bracing type gate valve according to claim 1 and 2 is characterized by: be provided with seal ring (5) among the valve Cuo (4).
4, bracing type gate valve according to claim 1 and 2 is characterized by: be provided with projection (9) in valve body (6) bottom and corresponding position, auxiliary gate-board (2) lower end surface.
5, bracing type gate valve according to claim 3 is characterized by: be provided with projection (9) in valve body (6) bottom and corresponding position, auxiliary gate-board (2) lower end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244446 CN2493788Y (en) | 2001-06-22 | 2001-06-22 | Prop open type gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244446 CN2493788Y (en) | 2001-06-22 | 2001-06-22 | Prop open type gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2493788Y true CN2493788Y (en) | 2002-05-29 |
Family
ID=33655873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01244446 Expired - Fee Related CN2493788Y (en) | 2001-06-22 | 2001-06-22 | Prop open type gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2493788Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886705A (en) * | 2010-06-25 | 2010-11-17 | 浙江欧斯特泵阀有限公司 | Wear-resistant parallel double-flashboard gate valve |
| CN102996837A (en) * | 2011-09-09 | 2013-03-27 | 株式会社蒂克斯Iks | Backseat assembly for expanding gate valve |
| CN103486285A (en) * | 2013-09-17 | 2014-01-01 | 天特阀门集团有限责任公司 | Expanding gate valve |
| 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 |
-
2001
- 2001-06-22 CN CN 01244446 patent/CN2493788Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886705A (en) * | 2010-06-25 | 2010-11-17 | 浙江欧斯特泵阀有限公司 | Wear-resistant parallel double-flashboard gate valve |
| CN101886705B (en) * | 2010-06-25 | 2011-12-28 | 浙江欧斯特泵阀有限公司 | Wear-resistant parallel double-flashboard gate valve |
| CN102996837A (en) * | 2011-09-09 | 2013-03-27 | 株式会社蒂克斯Iks | Backseat assembly for expanding gate valve |
| CN103486285A (en) * | 2013-09-17 | 2014-01-01 | 天特阀门集团有限责任公司 | Expanding gate valve |
| CN103486285B (en) * | 2013-09-17 | 2019-05-03 | 浙江天特阀门有限公司 | Prop open type gate valve |
| 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 | ||
| 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 |