CN201348048Y - Metal hard-sealed telescopic butterfly valve - Google Patents
Metal hard-sealed telescopic butterfly valve Download PDFInfo
- Publication number
- CN201348048Y CN201348048Y CNU2009201123944U CN200920112394U CN201348048Y CN 201348048 Y CN201348048 Y CN 201348048Y CN U2009201123944 U CNU2009201123944 U CN U2009201123944U CN 200920112394 U CN200920112394 U CN 200920112394U CN 201348048 Y CN201348048 Y CN 201348048Y
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- Prior art keywords
- valve
- ring
- metal
- valve body
- metal hard
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- Expired - Fee Related
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Abstract
A metal hard-sealed telescopic butterfly valve comprises a valve body, a valve stem mounted in the valve body, a gland cover arranged between the valve stem and the valve body, a valve plate connected with the valve stem, a metal seal ring mounted between the valve plate and the valve body, a telescopic pipe with axial displacement movably connected with the side cavity of the cavity, as well as a telescopic cover, a rubber ring and a locking screw arranged outside the telescopic pipe. The metal hard-sealed telescopic butterfly valve is characterized in that a groove is formed in the valve body; an adjustment ring is mounted in the groove; the adjustment ring is divided into segments, and notches are formed between the segments; an adjustment screw is mounted in the adjustment ring; and the adjustment screw keeps contact with the metal seal ring. The metal seal ring can be replaced simply and conveniently by unscrewing the adjustment screw and dismounting the adjustment without disassembling the entire valve.
Description
Technical field
The utility model relates to valve, particularly relates to the flexible butterfly valve of a kind of metal hard-sealing.
Background technique
The structure of flexible butterfly valve mainly is made up of institutes such as valve body, valve plate and valve rod, metal o-ring, telescopic pipe and fastening pieces, can extensively just be used for systems such as power station, water factory, municipal engineering and industrial plumbing, except effectively eliminating the various stress in the pipeline parts using process, and bring the effect of getting twice the result with half the effort for the installation of pipe-line system and valve maintenance.But the flexible butterfly valve of the metal hard-sealing of pipeline application all adopts the valve plate ring structure at present, this structure since the maximum outside diameter of seal ring greater than the sealing endoporus of valve body, and determined the replacing of valve sealing ring and maintenance can carry out behind the integral demounting valve, can't realize online defective of exempting to tear open maintenance at all, maintenance workload is very big, inefficiency, the operation cycle is long.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming of prior art, a kind of integral demounting valve that do not need to be provided, and safeguards and to change metal o-ring convenient, the whole applicating maintenance process that makes valve simply, the flexible butterfly valve of metal hard-sealing efficiently.
The technological scheme of the flexible butterfly valve of the utility model metal hard-sealing is: comprise a valve body, valve rod is installed in the valve body, between valve rod and the valve body Gland is arranged, valve rod connects valve plate, between valve plate and valve body, metal o-ring is installed, in a side inner chamber of valve body, flexibly connect the telescopic pipe of axial displacement, there is flexible gland in the outside of telescopic pipe, rubber ring and set screw, it is characterized in that being shaped in the valve body caulking groove, Adjusting ring is installed in the caulking groove, and described Adjusting ring is the segmentation cutting, and otch is arranged between every section, be equipped with adjusting screw in the Adjusting ring of segmentation cutting, adjusting screw contacts with metal o-ring.
The metal hard-sealing of the present utility model butterfly valve that stretches, in valve body, be shaped on caulking groove, Adjusting ring is installed in the caulking groove, convenient in order to make in the Adjusting ring embedded groove, can be with the Adjusting ring cutting section, withstand on the metal o-ring by the adjusting screw that is embedded in the Adjusting ring in the caulking groove, metal o-ring is fixed in the body cavity.Compared with the prior art, having changed existing metal o-ring is positioned on the valve plate, in the applicating maintenance process, must pull down the mode of operation that whole valve can be changed metal o-ring (metal o-ring can't take out from body cavity) from pipeline, promptly need not to pull down whole valve from pipeline, by turning on adjusting screw, take off Adjusting ring, can take out metal o-ring and change, whole applicating maintenance process is very simple, quick.
The metal hard-sealing of the present utility model butterfly valve that stretches, its described Adjusting ring cuts into more than 3 sections or 3 sections, and is easy for installation.Dottle pin is installed on metal o-ring, and dottle pin contacts with adjusting screw, and dottle pin has been arranged, and metal o-ring is not directly contacted with adjusting screw, reduces wear, and increases the service life.Be equipped with locking lock screw in its Adjusting ring, it is firm to install.
Description of drawings
Fig. 1 is the flexible butterfly valve structure schematic representation of the utility model metal hard-sealing;
Fig. 2 is the A-A schematic cross-section of Fig. 1.
Embodiment
The utility model relates to the flexible butterfly valve of metal hard-sealing, as Fig. 1, shown in Figure 2, comprise a valve body 3, valve rod 1 is installed in the valve body 3, Gland 2 is arranged between valve rod and the valve body, valve rod 1 connects valve plate 9, metal o-ring 8 is installed between valve plate 9 and valve body 3, in a side inner chamber of valve body 3, flexibly connect the telescopic pipe 13 of axial displacement, there is flexible gland 10 in the outside of telescopic pipe 13, rubber ring 12 and set screw 11, it is characterized in that being shaped in the valve body 3 caulking groove 14, Adjusting ring 4 is installed in the caulking groove 14, and described Adjusting ring 4 has otch 15 for the segmentation cutting between every section, be equipped with adjusting screw 6 in the Adjusting ring 4 of segmentation cutting, adjusting screw 6 contacts with metal o-ring 8.This programme is shaped on caulking groove 14 in valve body 3, Adjusting ring 4 is installed in the caulking groove 14, convenient in order to make in Adjusting ring 4 embedded grooves, can be with Adjusting ring 4 cutting sections, withstand on the metal o-ring 8 by the adjusting screw 6 that is embedded in the Adjusting ring 4 in the caulking groove 14, metal o-ring 8 is fixed in valve body 3 inner chambers.Compared with the prior art, having changed existing metal o-ring 8 is positioned on the valve plate 9, in the applicating maintenance process, must pull down the mode of operation that whole valve can be changed metal o-ring 8 (metal o-ring can't take out from body cavity) from pipeline, promptly need not to pull down whole valve from pipeline, by turning on adjusting screw 6, take off Adjusting ring 4, can take out metal o-ring 8, whole applicating maintenance process is very simple, quick.Its described Adjusting ring 4 cuts into more than 3 sections or 3 sections, and is easy for installation.Dottle pin 7 is installed on its metal o-ring 8, and dottle pin 7 contacts with adjusting screw 6, and dottle pin has been arranged, and metal o-ring is not directly contacted with adjusting screw, reduces wear, and increases the service life.Be equipped with locking lock screw 5 in its Adjusting ring 4, it is firm to install.
Claims (4)
1, the metal hard-sealing butterfly valve that stretches, comprise a valve body (3), valve rod (1) is installed in the valve body (3), Gland (2) is arranged between valve rod and the valve body, valve rod (1) connects valve plate (9), between valve plate (9) and valve body (3), metal o-ring (8) is installed, in a side inner chamber of valve body (3), flexibly connect the telescopic pipe (13) of axial displacement, there is flexible gland (10) in the outside of telescopic pipe (13), rubber ring (12) and set screw (11), it is characterized in that being shaped in the valve body (3) caulking groove (14), Adjusting ring (4) is installed in the caulking groove (14), described Adjusting ring (4) is the segmentation cutting, otch (15) is arranged between every section, be equipped with adjusting screw (6) in the Adjusting ring (4) of segmentation cutting, adjusting screw (6) contacts with metal o-ring (8).
2, the flexible butterfly valve of metal hard-sealing as claimed in claim 1 is characterized in that described Adjusting ring (4) cuts into more than 3 sections or 3 sections.
3, the flexible butterfly valve of metal hard-sealing as claimed in claim 1 is characterized in that upward installation dottle pin (7) of metal o-ring (8), and dottle pin (7) contacts with adjusting screw (6).
4, the flexible butterfly valve of metal hard-sealing as claimed in claim 1 is characterized in that being equipped with in the Adjusting ring (4) locking lock screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201123944U CN201348048Y (en) | 2009-01-09 | 2009-01-09 | Metal hard-sealed telescopic butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201123944U CN201348048Y (en) | 2009-01-09 | 2009-01-09 | Metal hard-sealed telescopic butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348048Y true CN201348048Y (en) | 2009-11-18 |
Family
ID=41367516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201123944U Expired - Fee Related CN201348048Y (en) | 2009-01-09 | 2009-01-09 | Metal hard-sealed telescopic butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348048Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626881A (en) * | 2014-10-31 | 2016-06-01 | 江苏神通阀门股份有限公司 | Valve seat structure for synthesis gas butterfly valve |
-
2009
- 2009-01-09 CN CNU2009201123944U patent/CN201348048Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626881A (en) * | 2014-10-31 | 2016-06-01 | 江苏神通阀门股份有限公司 | Valve seat structure for synthesis gas butterfly 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: 20091118 Termination date: 20150109 |
|
| EXPY | Termination of patent right or utility model |