CN2195663Y - Gate valve with flat sealing faces - Google Patents
Gate valve with flat sealing faces Download PDFInfo
- Publication number
- CN2195663Y CN2195663Y CN 94236756 CN94236756U CN2195663Y CN 2195663 Y CN2195663 Y CN 2195663Y CN 94236756 CN94236756 CN 94236756 CN 94236756 U CN94236756 U CN 94236756U CN 2195663 Y CN2195663 Y CN 2195663Y
- Authority
- CN
- China
- Prior art keywords
- valve
- plate
- valve body
- handgrip
- rod
- 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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- Sliding Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model provides an oppositely clamping plate type flat gate valve which comprises a valve body which is formed from the bolt connection oppositely clamping plates and a valve body plate which is arranged between the oppositely clamping plates, a valve core composed of a gate plate and a valve rod, and an opening and closing mechanism which composed of a handle and a connecting part connecting the handle and the valve rod, and a soft sealing pair and a hard sealing pair are formed among the gate plate, the valve body plate and the oppositely clamping plates. The utility model which has the advantages that the structure of the gate valve is simplified, the service life and the sealing property of the gate valve is extended, the operation is convenient, and the high safety and the reliability are high is suitable for coal gas systems, petroleum systems, natural gas systems, water delivery pipeline systems, etc.
Description
The utility model relates to a kind of gate valve, particularly relates to a kind of to the clamp plate type plate valve.
Existing gate valve is generally by valve body, and spool and switching mechanism are formed, and wherein valve body adopts the circular or oval valve body of whole structure, fix or floating valve seat, the valve body structure complexity, volume is big, and sealing pair is formed by the valve seat and the flashboard that embed valve body, and structure is comparatively complicated.
The purpose of this utility model is to provide a kind of valve body structure simple, good sealing effect to the clamp plate type plate valve.
The utility model is to realize like this to the clamp plate type plate valve, it comprises the valve body that is formed by connecting by bolt by two pairs of clamping plate and therebetween valve body plate, the spool of forming by flashboard and valve rod, the switching mechanism of forming by handgrip and the connected element that is connected handgrip and valve rod, on flashboard and valve body plate, be embedded with soft seal ring respectively, surface-treated layer arranged at flashboard and on to the clamping plate fitting surface.What wherein constitute valve body is generally the long-round-shape plate to clamping plate, and valve body plate therebetween is the ring-like plate of long-round-shape, adopts casting or die press technology for forming manufacturing.Flashboard and the valve rod of forming spool can be overall structure, also can be formed by connecting by two parts, generally adopt T type groove to flexibly connect.Embed the soft seal ring on flashboard and the valve body plate, its cross section can be " O " type, " X " type, T-shape or trapezoidal etc., adopt rubber or plastic materials to make, make it and to forming soft sealing pair between the clamping plate, flashboard with to the clamping plate fitting surface on the surface-treated layer that is provided be coating and/or the self lubricating material layer that applies, make and form the hard sealing pair between the two.
The utility model can adopt two kinds of forms to the switching mechanism of clamp plate type plate valve.A kind of form is, the connected element in the switching mechanism is made of the connecting rod that is connected with valve rod, the rotating shaft that is fixed on the connecting rod, and handgrip is the straight handle type rocking handle, is fixed on rotating shaft one end.Rotation crank rotates rotating shaft, and drivening rod promotes or close flashboard simultaneously.Another kind of form is, the connected element in the switching mechanism is arranged on Stem Mut and thrust bearing axle formation on the support by the support that cooperates with valve rod, and handgrip is circular handwheel, and fixes by Stem Mut and valve rod.Rotation hand wheel drives valve rod and promotes or close flashboard.Before the kind form promote or closing velocity fast, generally to adopt this kind form for well.
The utility model is to have simplified gate valve structure to the advantage of clamp plate type plate valve, has improved working life and sealing, and is easy to operate, safe and reliable, is applicable to coal gas, oil, rock gas and water delivery pipeline system.
Describe the utility model embodiment in detail below in conjunction with accompanying drawing.
Fig. 1: the utility model embodiment 1 structural representation
Fig. 2: the utility model embodiment 2 structural representations.
The utility model comprises the clamp plate type plate valve, the valve body that is formed by connecting by bolt 3 by two pairs of clamping plate 1 and therebetween valve body plate 2, the spool that constitutes by flashboard 4 and valve rod 5, the switching mechanism of forming by connected element and handgrip, be embedded in the soft seal ring 6 on flashboard 4, the valve body plate 2, wherein among the embodiment 1 switching mechanism by, the connecting rod 7 that is connected by pin 6 with valve rod 5, be fixed on rotating shaft 8 on the connecting rod 7, be arranged on stuffing box seat 9 between clamping plate 1 and the rotating shaft 8 and the straight handle type rocking handle 10 that is fixed on rotating shaft 8 one ends are constituted.Switching mechanism among the embodiment 2 by, the support 11 that cooperates with valve rod 5, be arranged on the Stem Mut 13 and thrust bearing 14 formations that are connected valve rod 5 and handwheel 12 on the support 11.
Claims (4)
1, a kind of to the clamp plate type plate valve, comprise valve body, the spool of forming by flashboard and valve rod, the switching mechanism of forming by handgrip and the connected element that is connected handgrip and valve rod, it is characterized in that valve body is connected and composed by bolt by two pairs of clamping plate and therebetween valve body plate, on flashboard and valve body plate, be embedded with soft seal ring respectively, on flashboard and fitting surface, surface-treated layer arranged clamping plate.
2, as claimed in claim 1 to the clamp plate type plate valve, it is characterized in that surface-treated layer is coating and/or self lubricating material layer.
3, as claimed in claim 1 to the clamp plate type plate valve, it is characterized in that the connected element in the switching mechanism is, the rotating shaft of the connecting rod that is connected with valve rod and connection connecting rod and handgrip, handgrip is the straight handle type rocking handle.
4, as claimed in claim 1 to the clamp plate type plate valve, it is characterized in that the connected element in the switching mechanism is, the support that cooperates with valve rod is arranged on the Stem Mut and the thrust bearing that connect valve rod and handgrip on the support, and handgrip is circular handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94236756 CN2195663Y (en) | 1994-06-30 | 1994-06-30 | Gate valve with flat sealing faces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94236756 CN2195663Y (en) | 1994-06-30 | 1994-06-30 | Gate valve with flat sealing faces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2195663Y true CN2195663Y (en) | 1995-04-26 |
Family
ID=33844643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94236756 Expired - Fee Related CN2195663Y (en) | 1994-06-30 | 1994-06-30 | Gate valve with flat sealing faces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2195663Y (en) |
-
1994
- 1994-06-30 CN CN 94236756 patent/CN2195663Y/en not_active Expired - Fee Related
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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 |