CN201982677U - Internal drive air-operated valve - Google Patents
Internal drive air-operated valve Download PDFInfo
- Publication number
- CN201982677U CN201982677U CN201120124472XU CN201120124472U CN201982677U CN 201982677 U CN201982677 U CN 201982677U CN 201120124472X U CN201120124472X U CN 201120124472XU CN 201120124472 U CN201120124472 U CN 201120124472U CN 201982677 U CN201982677 U CN 201982677U
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- China
- Prior art keywords
- valve
- valve body
- spool
- core
- boss
- 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 discloses an internal drive air-operated valve, which comprises a valve body, a valve cover and a valve clack, wherein the valve clack is fixed in the valve body via a screw; the valve cover is connected with the valve body by a fastener; a hollow valve core is further installed in the valve body; the front end part of the valve core and a sealing surface of the valve clack form a sealing pair; the valve core has a lug boss in the middle part; the lug boss and the valve body are sealed by an O-shaped sealing ring; the front end of the valve core and the valve body, and the back end of the valve core and the valve cover are sealed by the O-shaped sealing rings; the valve body in the front end of the lug boss of the valve core is provided with a valve opening air inlet; the valve body in the lug boss of the valve core is provided with a valve closing air inlet, and guide sleeves are further installed between the front end of the valve core and the valve body and between the back end of the valve core and the valve cover. The internal drive air-operated valve has the advantages that: a power drive device is arranged in an inner chamber of the valve body; the structure is compact; the sealing pair has translating movement when the valve is opened or closed; no relative friction is caused, and the internal drive air-operated valve has long service life.
Description
Technical field
The utility model relates to a kind of valving, especially a kind of pneumatic valve.
Background technique
At present at all kinds of pneumatic valves that use in metallurgy, petrochemical industry, nuclear power field, general employing valve body adds Pneumatic actuator and combines, volume is big, the structure heaviness, Installation and Debugging inconvenience, additional valves in opening-closing process between valve seat and the seal ring owing to there is relative friction, valve is lacked working life.
Summary of the invention
In order to overcome existing all kinds of pneumatic valves Pneumatic actuator in addition, volume is big, the structure heaviness, Installation and Debugging inconvenience, and between the valve seat of valve and the seal ring owing to there is relative friction, the deficiency that valve is lacked working life, the utility model provides a kind of built-in drive-type pneumatic valve.
The technological scheme that its technical problem that solves the utility model adopts is a kind of built-in drive-type pneumatic valve, comprise valve body, valve gap, flap, flap by screw in valve body, valve gap is connected by fastening piece with valve body, also have the spool of a hollow to be installed in the valve body, the sealing surface of spool front end and flap forms sealing pair, there is a boss at the spool middle part, boss and valve body pass through seal with O ring, between spool front end and the valve body and spool rear end and valve cover chamber pass through seal with O ring, on the valve body of the boss front end of spool, be provided with out the valve suction port, on the valve body of the boss of spool, have and close the valve suction port.
Between spool front end and the valve body, spool rear end and valve cover chamber also are equipped with guide sleeve.
The beneficial effects of the utility model are that Power Drive Unit is arranged on body cavity, compact structure, and sealing pair is done translational motion in the opening-closing process, does not have friction relatively, long service life.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the tectonic maps of present embodiment;
Among the figure: 1. valve body; 2. open the valve suction port; 3. close the valve suction port; 4.O shape circle; 5. boss; 6. spool; 7. flap; 8. guide sleeve; 9. valve gap; 10. screw.
Embodiment
As shown in Figure 1, a kind of built-in drive-type pneumatic valve, comprise valve body 1, valve gap 9, flap 7, flap 7 is fixed in the valve body 1 by screw 10, valve gap 9 and valve body 1 are connected by fastening piece, also have the spool 6 of a hollow to be installed in the valve body 1, the sealing surface of spool 6 front ends and flap 7 forms sealing pair, there is a boss 5 at spool 6 middle parts, boss 5 seals by O shape circle 4 with valve body 1,9 of between spool 6 front ends and the valve body 1 and spool 6 rear ends and valve gaps be by 4 sealings of O shape circle, is provided with out valve suction port 2 on the valve body 1 of boss 5 front ends of spool 6, has on the valve body 1 of the boss 5 of spool 6 and close valve suction port 3.Between spool 6 front ends and the valve body 1,9 of spool 6 rear ends and valve gaps also are equipped with guide sleeve 8.
When opening valve events, from opening 2 air inlets of valve suction port, promote spool 6 and move right, spool 6 leaves flap 7, the valve conducting; When closing valve, from closing 3 air inlets of valve suction port, promote spool 6 and be moved to the left, spool 6 contacts with flap 7 sealings, and valve cuts off.
Claims (2)
1. built-in drive-type pneumatic valve, comprise valve body, valve gap, flap, flap by screw in valve body, valve gap is connected by fastening piece with valve body, it is characterized in that: also have the spool of a hollow to be installed in the described valve body, the sealing surface of spool front end and flap forms sealing pair, there is a boss at the spool middle part, boss and valve body pass through seal with O ring, between spool front end and the valve body and spool rear end and valve cover chamber pass through seal with O ring, on the valve body of the boss front end of spool, be provided with out the valve suction port, on the valve body of the boss of spool, have and close the valve suction port.
2. built-in drive-type pneumatic valve according to claim 1 is characterized in that: between described spool front end and valve body, spool rear end and valve cover chamber also are equipped with guide sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120124472XU CN201982677U (en) | 2011-04-19 | 2011-04-19 | Internal drive air-operated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120124472XU CN201982677U (en) | 2011-04-19 | 2011-04-19 | Internal drive air-operated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982677U true CN201982677U (en) | 2011-09-21 |
Family
ID=44610139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120124472XU Expired - Fee Related CN201982677U (en) | 2011-04-19 | 2011-04-19 | Internal drive air-operated valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748478A (en) * | 2011-04-19 | 2012-10-24 | 江苏省东源核电阀门工程技术研究中心有限公司 | Built-in driven pneumatic valve |
-
2011
- 2011-04-19 CN CN201120124472XU patent/CN201982677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748478A (en) * | 2011-04-19 | 2012-10-24 | 江苏省东源核电阀门工程技术研究中心有限公司 | Built-in driven pneumatic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 226232 Industrial Park, Nanyang Town, Jiangsu, Qidong Patentee after: Dongyuan Jiangsu Valve Testing Technology Co., Ltd. Address before: 226232 Nanyang, Jiangsu City, East Town, Patentee before: Jiangsu Dongyuan Nuclear Power Valve Engineering Technology Research Center Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20190419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |