CN201145061Y - Eccentric rotary valve with antilock device - Google Patents
Eccentric rotary valve with antilock device Download PDFInfo
- Publication number
- CN201145061Y CN201145061Y CNU200820010480XU CN200820010480U CN201145061Y CN 201145061 Y CN201145061 Y CN 201145061Y CN U200820010480X U CNU200820010480X U CN U200820010480XU CN 200820010480 U CN200820010480 U CN 200820010480U CN 201145061 Y CN201145061 Y CN 201145061Y
- Authority
- CN
- China
- Prior art keywords
- valve
- rotary valve
- core shift
- valve body
- braking device
- 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
A core shift type rotary valve with an anti-lock braking device relates to a rotary valve. The valve body (1) is provided with the anti-lock braking device (3) of the core shift type rotary valve, a valve rod (2) of a valve core is packaged in the valve body (1), and a lower end cover (4) of the valve body is fixed onto the valve body (1). The structure of the anti-lock braking device (3) of the core shift type rotary valve is as follows: two fasteners are connected with a positioning stopper. The anti-lock braking device can effectively eliminate the lock phenomenon through restricting the valve core from excess rotation. After the anti-lock braking device of the core shift type rotary valve is adopted, a closing point of the valve can be set up with the consideration given to the impact of the material expansion coefficient, thereby effectively avoiding the valve lock phenomenon resulting from the change of temperature difference.
Description
Technical field
The utility model relates to a kind of rotary valve, particularly relates to a kind of core shift class rotary valve that has antilock device.
Background technique
In the existing core shift class changeover valve product, because the mode of structure of core shift class rotary valve, its valve core movement track is oval, when closing, closes tight more more.But under the active force of medium, be easy to take place the spool locking, cause valve to open.Valve causes very big influence with regard to cisco unity malfunction to production like this.In addition, after cold conditions was closed, high temperature media entered in this way, because material has expansion characteristics, also locking phenomenon can take place.Because not too being suitable for the media environment of High Temperature High Pressure, the defective of this structure, core shift class rotary valve use.
Summary of the invention
The purpose of this utility model is to provide a kind of and adopts antilock device on core shift class rotary valve valve body, can limit the locking phenomenon that the rotation of spool excessively causes.After adopting core shift class rotary valve antilock device, the pass close point of valve can be set, consider the influence of material expansion coefficient, can effectively avoid the valve locking phenomenon that produces owing to difference variation.
The purpose of this utility model is achieved through the following technical solutions:
The core shift class rotary valve that has antilock device is equipped with core shift class rotary valve antilock device on its valve body, the spool valve rod is encased in the valve body, and the lower end cap of valve body is fixed on the valve body.
The described core shift class rotary valve that has antilock device, the structure of its core shift class rotary valve antilock device constitutes: radially be fixed with position block through bolt on the valve body.
Advantage of the present utility model and effect are:
1. the locking phenomenon that the rotation of adopting core shift class rotary valve antilock device can limit spool excessively causes.
2. after adopting core shift class rotary valve antilock device, the pass close point (considering the influence of material expansion coefficient) of valve can be set, can effectively avoid the valve locking phenomenon that produces owing to difference variation like this.
Description of drawings
The utility model accompanying drawing is a structural representation.
Embodiment
With reference to the accompanying drawings the utility model is elaborated.
As shown in the figure, core shift class rotary valve anti-lock constructional device 3 is housed on the valve body 1, spool valve rod 2 is encased in the valve body 1, the lower end cap 4 with valve body is fixed on the valve body 1 at last, when spool valve rod 2 rotated, core shift class rotary valve anti-lock constructional device 3 had just played spacing effect.
The structure of core shift class rotary valve antilock device 3 constitutes: radially be fixed with position block through bolt on the valve body, position block is a slug, rotates in order to restriction spool 360 degree on valve body through two bolton.
This device can be used for core shift class changeover valve: ball valve, eccentric-butterfly-valve, camflex valve etc.Adopt behind the core shift class rotary valve antilock device using method all identical, can be connected, thereby reach the purpose of control valve keying with manual, steam-operating, electronic and device such as surge with common valve.
Claims (2)
1. the core shift class rotary valve that has antilock device is characterized in that being equipped with on the valve body (1) core shift class rotary valve antilock device (3), and spool valve rod (2) is encased in the valve body (1), and the lower end cap of valve body (4) is fixed on the valve body (1).
2. the core shift class rotary valve that has antilock device according to claim 1 is characterized in that the structure of core shift class rotary valve antilock device (3) constitutes: radially be fixed with position block through bolt on the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820010480XU CN201145061Y (en) | 2008-01-25 | 2008-01-25 | Eccentric rotary valve with antilock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820010480XU CN201145061Y (en) | 2008-01-25 | 2008-01-25 | Eccentric rotary valve with antilock device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145061Y true CN201145061Y (en) | 2008-11-05 |
Family
ID=40081938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820010480XU Expired - Fee Related CN201145061Y (en) | 2008-01-25 | 2008-01-25 | Eccentric rotary valve with antilock device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201145061Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725790A (en) * | 2017-09-30 | 2018-02-23 | 成都华科阀门制造有限公司 | A kind of computational methods for being catalyzed flue gas and butterfly valve and its sealing ring sealing curved surface being cut off with high temperature |
-
2008
- 2008-01-25 CN CNU200820010480XU patent/CN201145061Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725790A (en) * | 2017-09-30 | 2018-02-23 | 成都华科阀门制造有限公司 | A kind of computational methods for being catalyzed flue gas and butterfly valve and its sealing ring sealing curved surface being cut off with high temperature |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20170125 |