CN202082415U - Wafer type gate valve - Google Patents
Wafer type gate valve Download PDFInfo
- Publication number
- CN202082415U CN202082415U CN201020542406XU CN201020542406U CN202082415U CN 202082415 U CN202082415 U CN 202082415U CN 201020542406X U CN201020542406X U CN 201020542406XU CN 201020542406 U CN201020542406 U CN 201020542406U CN 202082415 U CN202082415 U CN 202082415U
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- CN
- China
- Prior art keywords
- valve body
- valve
- wafer type
- stuffing box
- 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
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Abstract
The utility model relates to a wafer type gate valve, in particular to a wafer type knife-shaped gate valve. The wafer type knife-shaped gate valve comprises a valve body above which a support is arranged; a gate segment penetrates through the valve body from above and extends into the valve body; a valve rod is connected above the gate segment and connected with the upper side of the support; a part above the valve body where the gate penetrates through the valve body is provided with a stuffing box; the stuffing box is internally provided with stuffing; a part inside the valve body, corresponding to the gate, is provided with a sealing groove; a sealing strip is arranged inside the sealing groove; and the opening width of the sealing groove is smaller than the inner width of the sealing groove. Therefore, the sealing strip is retained when escaping from the sealing groove, so that the sealing strip is not easier to drop compared with the prior art and a sealing structure is more stable.
Description
Technical field
The utility model relates to a kind of wafer type gate valve, relates in particular to a kind of wafer type knife-shape gate valve.
Background technique
Plurality of advantages such as the wafer type knife-shape gate valve is short, in light weight because of its structure length, and is convenient for installation and maintenance and in many low pressure pipeline transporting systems, being widely used.The structure of traditional wafer type knife-shape gate valve is disclosed at the mechanical industry standard JB/T 8691-1998 of country, and its valve body adopts two split-type structurals, and it is loaded down with trivial details to exist processing, and trouble is installed, complex structure, and sealing is not durable, and shortcomings such as dislocation easily are installed.A kind of wafer type gate valve is arranged now, deficiency at conventional art has been made improvement, the valve body of two branch body structures has been made integrative-structure, though overcome the defective of conventional art, but it exists shortcoming equally: this valve sealing structure adopts side sealing, at the valve body side face Stamping Steel Ribbon is installed, feasible closely the contact with flashboard played sealing effect, yet install the outer isoplanar of this valve seal groove and seal groove, Stamping Steel Ribbon is in use hauled out seal groove by flashboard easily, makes valve seal not use; The structure at the lumen position below stuffing box on the valve body is also continued to use traditional structure, but have in the middle of the valve body narrow and small length of distance very long hold the space that flashboard passes, make valve body casting difficulty increase the scrappage height; Also have the stuffing box position degree of depth of this kind valve mechanism not enough, cause to go up easily in the valve using process and leak the defective that working life is short.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned defective of prior art, and the wafer type gate valve that a kind of sealing configuration is stable, valve body structure is reasonable, packing box seal is good is provided.
The utility model comprises valve body, the valve body top is provided with support, flashboard is passed valve body and is stretched into inlet valve body by the top, flashboard top is connected with valve rod, and valve rod is connected with the top of support, is provided with stuffing box being positioned at the position that flashboard above the valve body passes valve body, be provided with filler in the stuffing box, the position corresponding with flashboard is provided with seal groove in the valve body, is provided with Stamping Steel Ribbon in the seal groove, and its technical solution is that described seal groove A/F is less than the seal groove inner width.
Like this, the opening of Stamping Steel Ribbon sealed groove of meeting when breaking away from seal groove stops, it is come off than prior art is more difficult.
Further technical solution of the present utility model is that the inwall at the lumen position of stuffing box below on the valve body is recessed laterally.
Like this, the inner space of cavity segment increases in the valve body, and this structure is more suitable for the enforcement of valve body integral casting process.
The degree of depth that further technical solution of the present utility model is described stuffing box is increased to holds four layers of filler at least.
The increase of the stuffing box degree of depth makes it can hold minimum four layers filler, and three layers of filler compared to existing technology make valve be not easy to take place the problem of seal leakage, have improved the serviceability and the reliability of last sealing greatly.
Description of drawings
Further illustrate particular content of the present utility model below in conjunction with drawings and Examples.
Fig. 1: the structural representation of the wafer type knife-shape gate valve of prior art;
Fig. 2: the structural representation of present embodiment;
The side view of Fig. 3: Fig. 2.
Embodiment
As shown in the figure, present embodiment comprises valve body 1, the valve body top is provided with support 6, flashboard 3 is passed valve body 1 and is stretched into inlet valve body 1 by the top, flashboard 1 top is connected with valve rod 7, valve rod 7 is connected with the top of support 6, be provided with stuffing box 5 being positioned at the position that flashboard 3 above the valve body 1 passes valve body 1, the degree of depth of this stuffing box 5 can be held four layers of filler, be provided with four layers of filler in the stuffing box 5, position corresponding with flashboard 3 in the valve body 1 is provided with seal groove 21, is provided with Stamping Steel Ribbon 2 in the seal groove 21, and seal groove 21 A/Fs are less than seal groove 21 inner widths, the inwall at the lumen position 4 below stuffing box on the valve body 5 is recessed laterally, valve body 1 outer wall of this part shifts out corresponding distance laterally, and the wall thickness of valve body 1 does not have too big variation like this, and valve body 1 intensity is remained unchanged.
Claims (3)
1. wafer type gate valve, comprise valve body, the valve body top is provided with support, and flashboard is passed valve body and stretched into inlet valve body by the top, and the flashboard top is connected with valve rod, valve rod is connected with the top of support, be provided with stuffing box being positioned at the position that flashboard above the valve body passes valve body, be provided with filler in the stuffing box, the position corresponding with flashboard is provided with seal groove in the valve body, be provided with Stamping Steel Ribbon in the seal groove, it is characterized in that: described seal groove A/F is less than the seal groove inner width.
2. wafer type gate valve according to claim 1 is characterized in that: the inwall at the lumen position of stuffing box below is recessed laterally on the valve body.
3. wafer type gate valve according to claim 1 and 2 is characterized in that: the degree of depth of described stuffing box can be held four layers of filler at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020542406XU CN202082415U (en) | 2010-09-27 | 2010-09-27 | Wafer type gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020542406XU CN202082415U (en) | 2010-09-27 | 2010-09-27 | Wafer type gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202082415U true CN202082415U (en) | 2011-12-21 |
Family
ID=45343044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020542406XU Expired - Fee Related CN202082415U (en) | 2010-09-27 | 2010-09-27 | Wafer type gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202082415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537465A (en) * | 2012-02-16 | 2012-07-04 | 温州市铁龙阀门有限公司 | Valve body of multifunctional knife gate valve |
-
2010
- 2010-09-27 CN CN201020542406XU patent/CN202082415U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537465A (en) * | 2012-02-16 | 2012-07-04 | 温州市铁龙阀门有限公司 | Valve body of multifunctional knife gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20140927 |
|
| EXPY | Termination of patent right or utility model |