CN204512461U - A kind of instrument sampling valve of automatic renewal sealing surface - Google Patents
A kind of instrument sampling valve of automatic renewal sealing surface Download PDFInfo
- Publication number
- CN204512461U CN204512461U CN201520182632.4U CN201520182632U CN204512461U CN 204512461 U CN204512461 U CN 204512461U CN 201520182632 U CN201520182632 U CN 201520182632U CN 204512461 U CN204512461 U CN 204512461U
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- valve
- flap
- ball
- sealing surface
- supporting block
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Abstract
A kind of instrument sampling valve of automatic renewal sealing surface, comprise valve body, valve rod, valve gap and flap, valve rod is arranged in valve body by valve gap, medium channel and valve pocket is provided with in valve body, valve stem end is provided with flap, and flap is positioned at described valve pocket, is used to open or close medium channel, flap is spherical structure, and is placed in the spherical cavity of valve stem end with valve rod is split type.The beneficial effects of the utility model are: each closedown of valve can obtain the wearing and tearing that a brand-new sealing surface avoids flap, ensure that sealability, extends the working life of valve.
Description
Art
The utility model relates to valve field, is specifically related to a kind of instrument sampling valve.
Background technique
The instrument sampling valve of currently available technology, is and directly processes integral conical flap or integral type globe disk on valve rod, and in Long-Time Service process, flap weares and teares, and causes producing interior leakage during valve closing, and valve is short for working life.
Model utility content
In order to overcome the above-mentioned shortcoming of existing instrument sampling valve, the utility model provides one automatically can upgrade sealing surface, prevents because flap wearing and tearing produce the interior instrument sampling valve leaked.
The utility model solves the technological scheme that its technical problem adopts, a kind of instrument sampling valve of automatic renewal sealing surface, comprise valve body, valve rod, valve gap and flap, valve rod is arranged in valve body by valve gap, medium channel and valve pocket is provided with in valve body, valve stem end is provided with flap, flap is positioned at described valve pocket, be used to open or close medium channel, flap is spherical structure, valve stem end face is inner ball surface, its diameter is identical with flap diameter, valve stem end is fixedly connected with an annular ball-supporting block, the top end face of annular ball-supporting block is inner ball surface, its diameter is identical with flap diameter, flap is placed in can be done 360 ° in spherical cavity that valve rod and ball-supporting block formed and freely rotate, and the sealing surface of the flap and valve body that expose to ball-supporting block is sealed and matched, during installation, first flap is placed in spherical cavity, again ball-supporting block is fixedly connected with valve rod.
Flap is cemented carbide steel ball.
The beneficial effects of the utility model are: flap is set to spheroid, and setting split type with valve rod, when valve opening, globe disk falls under gravity, and contacts with the sphere of ball-supporting block, avoids spheroid to be scratched; When the valve is closed, under the effect of medium power, globe disk can do the unrestricted motion of 360 dimensions in the spherical cavity that valve rod and ball-supporting block are formed, and has self contering function due to globe disk, therefore guarantees that each closedown can obtain a brand-new sealing surface; After globe disk is closed, valve stem end face contacts completely with globe disk, ensures flap uniform force and avoids flap to be scratched.So, avoid the wearing and tearing of flap, ensure that the sealability of valve, extend the working life of valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment;
Fig. 2 is I place's enlarged view in Fig. 1.
In figure: 1. valve gap; 2. valve rod; 3. valve body; 4. flap; 5. valve pocket; 6. medium channel; 7. ball-supporting block; 8. spherical cavity.
Embodiment
As Fig. 1, shown in 2, the instrument sampling valve of automatic renewal sealing surface, comprise valve body 3, valve rod 2, valve gap 1 and flap 4, valve rod 2 is arranged in valve body 3 by valve gap 1, medium channel 6 and valve pocket 5 is provided with in valve body 3, valve rod 2 end is provided with flap 4, flap 4 is positioned at described valve pocket 5, be used to open or close medium channel 6, flap 4 is spherical structure, valve rod 2 terminal surface is inner ball surface, its diameter is identical with flap 4 diameter, valve rod 2 end is fixedly connected with an annular ball-supporting block 7, the top end face of annular ball-supporting block 7 is inner ball surface, its diameter is identical with flap 4 diameter, flap 4 is placed in that spherical cavity 8 that valve rod 2 and ball-supporting block 7 formed is interior can be done 360 ° and freely rotate, and the flap 4 exposing to ball-supporting block 7 is sealed and matched with the sealing surface of valve body 3, during installation, first flap 7 is placed in spherical cavity 8, again ball-supporting block 7 is fixedly connected with valve rod 2, usually, flap 4 is cemented carbide steel ball, welded by argon arc welding between ball-supporting block 7 with valve rod 2.
When valve opening, flap 4 falls under gravity, and contacts with the sphere of ball-supporting block 7, avoids spheroid to be scratched; When the valve is closed, under the effect of medium power, flap 4 can do 360 ° of unrestricted motions in the spherical cavity 8 that valve rod 2 and ball-supporting block 7 are formed, and has self contering function due to flap 4, therefore guarantees that closedown at every turn can obtain a brand-new sealing surface; After flap 4 is closed, valve rod 2 terminal surface contacts completely with flap 4, ensures flap 4 uniform force and avoids being scratched.
Claims (2)
1. one kind upgrades the instrument sampling valve of sealing surface automatically, comprise valve body, valve rod, valve gap and flap, described valve rod is arranged in valve body by valve gap, medium channel and valve pocket is provided with in valve body, valve stem end is provided with flap, flap is positioned at described valve pocket, be used to open or close described medium channel, it is characterized in that: described flap is spherical structure, described valve stem end face is inner ball surface, its diameter is identical with flap diameter, described valve stem end is fixedly connected with an annular ball-supporting block, the top end face of described annular ball-supporting block is inner ball surface, its diameter is identical with flap diameter, described flap is placed in can be done 360 ° in spherical cavity that valve rod and ball-supporting block formed and freely rotate, and the sealing surface of the flap and valve body that expose to ball-supporting block is sealed and matched, during installation, first flap is placed in described spherical cavity, again ball-supporting block is fixedly connected with valve rod.
2. the instrument sampling valve automatically upgrading sealing surface as claimed in claim 1, is characterized in that: described flap is cemented carbide steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182632.4U CN204512461U (en) | 2015-03-30 | 2015-03-30 | A kind of instrument sampling valve of automatic renewal sealing surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182632.4U CN204512461U (en) | 2015-03-30 | 2015-03-30 | A kind of instrument sampling valve of automatic renewal sealing surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512461U true CN204512461U (en) | 2015-07-29 |
Family
ID=53710441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520182632.4U Active CN204512461U (en) | 2015-03-30 | 2015-03-30 | A kind of instrument sampling valve of automatic renewal sealing surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747739A (en) * | 2015-03-30 | 2015-07-01 | 江苏神通阀门股份有限公司 | Instrument sampling valve capable of automatically updating sealing face |
-
2015
- 2015-03-30 CN CN201520182632.4U patent/CN204512461U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747739A (en) * | 2015-03-30 | 2015-07-01 | 江苏神通阀门股份有限公司 | Instrument sampling valve capable of automatically updating sealing face |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230607 Address after: No. 68, xilide Road, Nanyang Town, Qidong City, Nantong City, Jiangsu Province, 226232 Patentee after: Jiangsu Shentong Nuclear Power Equipment Co.,Ltd. Address before: No. 88, Xiexing Street, Nanyang Town, Qidong City, Nantong City, Jiangsu Province, 226232 Patentee before: JIANGSU SHENTONG VALVE Co.,Ltd. |