CN204677785U - A kind of valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure - Google Patents
A kind of valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure Download PDFInfo
- Publication number
- CN204677785U CN204677785U CN201520343490.5U CN201520343490U CN204677785U CN 204677785 U CN204677785 U CN 204677785U CN 201520343490 U CN201520343490 U CN 201520343490U CN 204677785 U CN204677785 U CN 204677785U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve plate
- annular
- trim ring
- seal
- 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
Links
- 230000003467 diminishing effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a kind of valve plate and valve seal cooperating structure of three eccentricity hard seal butterfly valve, comprise valve body, valve plate is provided with in body cavity, valve plate is provided with valve rod mounting hole, the annular protrusion matched with valve plate is provided with in the inner chamber of valve body, the large end side of annular protrusion is provided with valve plate, the front-end face of valve plate has second order annular table, first ladder surface of annular table is provided with circular groove, be provided with the wound gasket of annular in circular groove, First terrace be provided with the valve seals pushing down wound gasket; Annular table second step face is provided with the mounting groove of annular, and be provided with self-expanding rubber seal in mounting groove, second step face is provided with trim ring, and trim ring is secured by bolts on valve plate, and the outer surface of wound gasket, self-expanding rubber seal pushed down by trim ring.The utility model coordinates self-expanding rubber seal by rational sealing configuration, ensures installation soundness and the stability of sealing surface, also improves sealability further simultaneously.
Description
technical field:
The utility model relates to butterfly valve, particularly relates to a kind of valve plate and valve seal cooperating structure of three eccentricity hard seal butterfly valve.
background technique:
At present, butterfly valve is as a kind of parts being used for realizing pipe-line system break-make and flow control, and metal hard-sealing butterfly valve, valve body and valve seat are disjunctor component, valve seat sealing surface layer built-up welding heatproof, corrosion resistant alloy material.The soft stacked seal ring of multilayer is fixed on valve plate, this butterfly valve has high temperature resistant compared with traditional butterfly valve, operates light, opens and closes without friction, compensation sealing, the sealability that improve butterfly valve and the advantage increased the service life is come along with the moment of driving mechanism increases during closedown.
Certainly, for above-mentioned sealing configuration, sealability is the demand reaching working environment at short notice, but along with long work, loosening easily appears in sealing surface, thus causes be affected the working life of butterfly valve.
model utility content:
In order to make up prior art problem, the purpose of this utility model is to provide a kind of valve plate and valve seal cooperating structure of three eccentricity hard seal butterfly valve, ensures installation soundness and the stability of sealing surface, also improves sealability further simultaneously.
The technical solution of the utility model is as follows:
The valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure, comprise valve body, valve plate is provided with in body cavity, valve plate is provided with valve rod mounting hole, it is characterized in that: in the inner chamber of described valve body, be provided with the annular protrusion matched with valve plate, the large end side of annular protrusion is provided with valve plate, the front-end face of valve plate has the diminishing step-like annular table of external diameter, first ladder surface of annular table is provided with circular groove, be provided with the wound gasket of annular in circular groove, First terrace be provided with the valve seals pushing down described wound gasket; Described annular table second step face is provided with the mounting groove of annular, and be provided with self-expanding rubber seal in mounting groove, second step face is provided with trim ring, and trim ring is secured by bolts on valve plate, and the outer surface of wound gasket, self-expanding rubber seal pushed down by trim ring; The conical surface that described trim ring and the outer peripheral surface of wound gasket match with described annular protrusion inwall.
The valve plate of described three eccentricity hard seal butterfly valve and valve seal cooperating structure, described expanded rubber seal ring and trim ring phase-contact surface are provided with the lip limit of some roads annular, trim ring are also provided with the groove matched with lip limit.
The utility model has the advantages that:
The utility model coordinates self-expanding rubber seal by rational sealing configuration, when bolt tightening fixes whole sealing surface, can play the anti-loosening effect of elasticity, ensures installation soundness and the stability of sealing surface, also improves sealability further simultaneously.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model self-expanding rubber seal.
embodiment:
See accompanying drawing:
The valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure, comprise valve body 1, valve plate 2 is provided with in valve body 1 inner chamber, valve plate 2 is provided with valve rod mounting hole 3, the annular protrusion 3 matched with valve plate is provided with in the inner chamber of valve body 1, annular protrusion 3 is provided with valve plate 2 in end side greatly, the front-end face of valve plate 2 has the diminishing step-like annular table of external diameter, first ladder surface of annular table is provided with circular groove, be provided with the wound gasket 4 of annular in circular groove, First terrace be provided with the valve seals 5 pushing down wound gasket 4; Annular table second step face is provided with the mounting groove of annular, self-expanding rubber seal 6 is provided with in mounting groove, second step face is provided with trim ring 7, and trim ring 7 is fixed on valve plate 2 by bolt 8, and the outer surface of wound gasket 4, self-expanding rubber seal 6 pushed down by trim ring 7; The conical surface that the outer peripheral surface of trim ring 7 and wound gasket 4 matches with annular protrusion 3 inwall, is used for the inflow of control flow check body medium and outflow.
Expanded rubber seal ring 6 and trim ring 7 phase-contact surface are provided with the lip limit 9 of some roads annular, trim ring 7 are also provided with the groove 10 matched with lip limit 9.
Claims (2)
1. the valve plate of a three eccentricity hard seal butterfly valve and valve seal cooperating structure, comprise valve body, valve plate is provided with in body cavity, valve plate is provided with valve rod mounting hole, it is characterized in that: in the inner chamber of described valve body, be provided with the annular protrusion matched with valve plate, the large end side of annular protrusion is provided with valve plate, the front-end face of valve plate has the diminishing step-like annular table of external diameter, first ladder surface of annular table is provided with circular groove, be provided with the wound gasket of annular in circular groove, First terrace be provided with the valve seals pushing down described wound gasket; Described annular table second step face is provided with the mounting groove of annular, and be provided with self-expanding rubber seal in mounting groove, second step face is provided with trim ring, and trim ring is secured by bolts on valve plate, and the outer surface of wound gasket, self-expanding rubber seal pushed down by trim ring; The conical surface that described trim ring and the outer peripheral surface of wound gasket match with described annular protrusion inwall.
2. the valve plate of three eccentricity hard seal butterfly valve according to claim 1 and valve seal cooperating structure, it is characterized in that: described self-expanding rubber seal and trim ring phase-contact surface are provided with the lip limit of some roads annular, trim ring is also provided with the groove matched with lip limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343490.5U CN204677785U (en) | 2015-05-25 | 2015-05-25 | A kind of valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343490.5U CN204677785U (en) | 2015-05-25 | 2015-05-25 | A kind of valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677785U true CN204677785U (en) | 2015-09-30 |
Family
ID=54177478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520343490.5U Expired - Fee Related CN204677785U (en) | 2015-05-25 | 2015-05-25 | A kind of valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896121A (en) * | 2015-05-25 | 2015-09-09 | 蚌埠南自仪表有限公司 | Valve plate and valve body sealing cooperation structure of three-eccentric hard sealing butterfly valve |
| CN109099169A (en) * | 2018-09-05 | 2018-12-28 | 温州上沃阀门科技有限公司 | The valve plate fixed mechanism with sealing regulatory function of soft sealing butterfly valve |
-
2015
- 2015-05-25 CN CN201520343490.5U patent/CN204677785U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896121A (en) * | 2015-05-25 | 2015-09-09 | 蚌埠南自仪表有限公司 | Valve plate and valve body sealing cooperation structure of three-eccentric hard sealing butterfly valve |
| CN109099169A (en) * | 2018-09-05 | 2018-12-28 | 温州上沃阀门科技有限公司 | The valve plate fixed mechanism with sealing regulatory function of soft sealing butterfly valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204459257U (en) | A kind of triple seal valve seat | |
| CN204677785U (en) | A kind of valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure | |
| CN205298623U (en) | Compound seal structure of box -like ball valve of multichannel multiunit | |
| CN104896121A (en) | Valve plate and valve body sealing cooperation structure of three-eccentric hard sealing butterfly valve | |
| CN203500596U (en) | Hard-and-soft sealing structure of valve flap of spring type safety valve | |
| CN105864537A (en) | Novel flange seal washer | |
| CN203571276U (en) | Sealing structure of pipeline flange | |
| CN202493697U (en) | Metal valve structure in check valve | |
| CN204852438U (en) | Full welded ball valve of gas | |
| CN203756710U (en) | Waterproof anti-corrosion mechanical sealing gasket | |
| CN205877503U (en) | Novel flange seal packing ring | |
| CN204300528U (en) | Glass fiber reinforced plastic sand-inclusion pipeline | |
| CN202280857U (en) | Half-cone-shaped plate gate valve | |
| CN204387352U (en) | A kind of wide sealing is to folder butterfly valve | |
| CN201496604U (en) | Composite sealing ball valve | |
| CN203272830U (en) | Dual-purpose throttle stop valve | |
| CN204459147U (en) | A kind of Bolt Connection Bidirectional static seal structure | |
| CN207648304U (en) | A kind of high pressure W.N flange | |
| CN204201240U (en) | A kind of piston type pneumatic control sentinel valve | |
| CN204677881U (en) | A kind of one-way valve with elastic sealing structure | |
| CN205047881U (en) | Venting ball valve | |
| CN204300551U (en) | A kind of pipe joint | |
| CN205136870U (en) | Fire oil pipe connection structure | |
| CN201982748U (en) | Regulation type throttling plunger valve | |
| CN203880277U (en) | Novel flange gasket |
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: 20150930 Termination date: 20160525 |