CN201302007Y - Corrugated pipe stop valve - Google Patents
Corrugated pipe stop valve Download PDFInfo
- Publication number
- CN201302007Y CN201302007Y CNU2008201493862U CN200820149386U CN201302007Y CN 201302007 Y CN201302007 Y CN 201302007Y CN U2008201493862 U CNU2008201493862 U CN U2008201493862U CN 200820149386 U CN200820149386 U CN 200820149386U CN 201302007 Y CN201302007 Y CN 201302007Y
- Authority
- CN
- China
- Prior art keywords
- valve
- corrugated pipe
- bellows
- valve rod
- 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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Abstract
A corrugated pipe stop valve comprises a valve body (1), a valve rod (16) mounted in the valve rod cavity of the valve body through a valve cap (13), and a valve clack (2) mounted at the lower end of the valve rod and between a liquid inlet passage and a liquid outlet passage. A corrugated pipe (6) for sealing is sleeved on the lower segment of the valve rod in the valve chamber; the lower end of the corrugated pipe (6) is positioned above the valve clack, and is closely and fixedly connected with the valve rod body; the upper end of the corrugated pipe (6) is positioned below the valve cap (13), and a sealing bowl (7) is fixedly connected at the upper end of the corrugated pipe; the central hole of the sealing bowl (7) and the corrugated pipe (6) are fixedly connected; and the periphery of the sealing bowl (7) is tightly pressed on the end surface of the valve rod cavity through the valve cap (13). Due to the arrangement of the corrugated pipe component, a closed inner chamber is formed between the valve rod cavity of the valve body and the corrugated pipe component, so that no-leakage can be realized without material feeding, and the problem that the liquid in the stop valve technology is easy to leak is solved.
Description
Technical field
The utility model relates to a kind of bellows stop valve, and this stop valve is applicable to that making start-stop device in petrochemical industry, space flight, aviation, naval vessel and the nuclear industry pipeline of operating temperature≤425 ℃ uses.
Background technique
The stop valve of prior art is because the sealing between its valve rod and the valve body is to compress the back by filler and Gland to form sealing, therefore valve is in opening-closing process, valve rod can make filler wear and tear gradually in doing axial or rotary movement, and the gap continues to increase, and very easily produces at the filler place and leaks.
Summary of the invention
The purpose of this utility model provides at existing deficiency in the above-mentioned prior art just that a kind of structure is more reasonable, long service life and be difficult for producing the bellows stop valve that leaks.
The purpose of this utility model can realize by following technique measures:
Bellows stop valve of the present utility model comprises valve body, is installed in the valve rod in the valve-rod cavity of valve body by valve gap, and is installed in the valve rod lower end, is positioned at the flap between valve body liquid inlet and outlet runner; Be set with the bellows that seals being positioned on the valve rod hypomere body of valve pocket, the lower end of this bellows end the flap top, and and valve stem body between constitute airtight affixed relation; The upper end of this bellows terminates in the valve gap below, and is connected with a seal bowl in the upper end of bellows, the center hole of sealing bowl and bellows Joint, and the periphery of sealing bowl closely is fitted on the end face of valve-rod cavity by valve gap.
The beneficial effects of the utility model are as follows:
Because the setting of bellows component, can make the inner chamber that forms sealing between valve-rod cavity in the valve body and the bellows component, do not need filler, just can reach the purpose of zero leakage, thereby solve the difficult problem that the stop valve process fluid leaks easily in the prior art; And use novel valve also to have long service life compared to existing technology, open that moment is little, manufacturing process is reliable, the advantage of favorable sealing property.
Description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is the partial enlarged drawing that the bellows component position is installed among Fig. 1.
Sequence number among the figure: the 1st, valve body, the 2nd, flap, the 3rd, straight pin, the 4th, spacer ring 5 is valve bonnet seal pads, the 6th, bellows, the 7th, seal bowl, the 8th, stud bolt, the 9th, nut, the 10th, plain cushion, the 11st, graphite circle, the 12nd, gland, the 13rd, valve gap, the 14th, positioning block, the 15th, elastic cylindrical pin, the 16th, valve rod, the 17th, Stem Mut, the 18th, flat key, the 19th, label, the 20th, locknut, the 21st, handwheel.
Embodiment
The utility model does a description below with reference to embodiment's (accompanying drawing):
As shown in Figure 1 and Figure 2, bellows stop valve of the present utility model comprises valve body 1, is installed in the valve rod 16 in the valve-rod cavity of valve body by valve gap 13, and is installed in the valve rod lower end, is positioned at the flap 2 between valve body liquid inlet and outlet runner; Be set with the bellows 6 that seals being positioned on the valve rod hypomere body of valve pocket, the lower end of this bellows 6 end the flap top, and and valve stem body between constitute airtight affixed relation; The upper end of this bellows 6 terminates in valve gap 13 belows, and is connected with a seal bowl 7 in the upper end of bellows, the center hole of sealing bowl 7 and bellows 6 Joints, and the periphery of sealing bowl 7 closely is fitted on the end face of valve-rod cavity by valve gap 13.
Claims (1)
1, a kind of bellows stop valve is characterized in that: it comprises valve body (1), is installed in valve rod (16) in the valve-rod cavity of valve body by valve gap (13), and is installed in the valve rod lower end, is positioned at the flap (2) between valve body liquid inlet and outlet runner; Be set with the bellows (6) that seals on the valve rod hypomere body of valve pocket being positioned at, the lower end of this bellows (6) end the flap top, and and valve stem body between constitute airtight affixed relation; The upper end of this bellows (6) terminates in valve gap (13) below, and be connected with a seal bowl (7) in the upper end of bellows, the center hole of sealing bowl (7) and bellows (6) Joint, the periphery of sealing bowl (7) closely is fitted on the end face of valve-rod cavity by valve gap (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201493862U CN201302007Y (en) | 2008-09-24 | 2008-09-24 | Corrugated pipe stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201493862U CN201302007Y (en) | 2008-09-24 | 2008-09-24 | Corrugated pipe stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201302007Y true CN201302007Y (en) | 2009-09-02 |
Family
ID=41085633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201493862U Expired - Fee Related CN201302007Y (en) | 2008-09-24 | 2008-09-24 | Corrugated pipe stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201302007Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966744A (en) * | 2012-11-28 | 2013-03-13 | 江苏鼎晟阀门有限公司 | Chlorine stop valve |
| CN103994274A (en) * | 2014-06-06 | 2014-08-20 | 施瑞德阀门(厦门)有限公司 | Corrugated pipe plug valve |
| CN105546207A (en) * | 2016-03-01 | 2016-05-04 | 马鞍山市润启新材料科技有限公司 | Valve rod for ship |
-
2008
- 2008-09-24 CN CNU2008201493862U patent/CN201302007Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966744A (en) * | 2012-11-28 | 2013-03-13 | 江苏鼎晟阀门有限公司 | Chlorine stop valve |
| CN103994274A (en) * | 2014-06-06 | 2014-08-20 | 施瑞德阀门(厦门)有限公司 | Corrugated pipe plug valve |
| CN105546207A (en) * | 2016-03-01 | 2016-05-04 | 马鞍山市润启新材料科技有限公司 | Valve rod for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20120924 |