CN2429701Y - Stop valve with declined surface and two gates - Google Patents
Stop valve with declined surface and two gates Download PDFInfo
- Publication number
- CN2429701Y CN2429701Y CN 00218014 CN00218014U CN2429701Y CN 2429701 Y CN2429701 Y CN 2429701Y CN 00218014 CN00218014 CN 00218014 CN 00218014 U CN00218014 U CN 00218014U CN 2429701 Y CN2429701 Y CN 2429701Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- rubber cushion
- plane
- flap
- safety check
- 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 relates to an industrial check valve, particularly a slope double-door check valve. The existing check valve uses metal sheets to do internal press and self sealing, the service life is short, the resistance force is large, and the sealing performance is not good. The utility model comprises a valve body and two valve clacks. An elliptical rubber pad is fixed on a support rod through a press rod. The valve clacks and a press plate are fixed on both surfaces of the rubber pad. The edge of the valve clack is provided with a conical surface. When the valve clack is completely closed and sealed, an included angle is arranged between the valve clack and the inner wall of the pipe-shaped valve body, and the conical surface is completely contacted with the inner wall of the pipe-shaped valve body. The utility model has the advantages of good sealing performance and long service life.
Description
The utility model relates to a kind of industrial safety check, the two-door safety check in especially a kind of inclined-plane.
Be extensive use of safety check in fields such as liquefied petroleum gas, liquid oxygen, refrigeration, environmental protection, air purifications.Traditional lift check valve, Swing check valve and the two-door safety check of common plane chip all are to adopt the tinsel internal-pressure self-sealing, often too small because of feedback pressure, tinsel sealing surface pretightening force is not enough, selfsealings are difficult to form, cause leakage, and the life-span is short, resistance is big, is not suitable for and makes start-stop device on pipeline.
The purpose of this utility model overcomes the deficiencies in the prior art exactly, provide a kind of life-span long, resistance is little, good airproof performance, and is adapted at the two-door safety check in inclined-plane that uses on the various pipelines.
The utility model is achieved in that the two-door safety check in a kind of inclined-plane, comprise tubular valve body and two flaps, it is characterized in that being fixed with a strut along diametric(al) in the valve body, one oval rubber cushion is converted into " V " shape along the minor axis of ellipse, one depression bar that cooperates with strut is arranged on the minor axis position of oval rubber cushion, and with elastic mounting on strut, two flaps are half elliptic, be separately positioned on the down either side that is converted into " V " shape rubber cushion, two pressing plates are separately positioned on the top, both sides that is converted into " V " shape rubber cushion, and be fixed together with rubber cushion and flap, during the complete contact seal of flap and tubular valve body inwall, angle between flap and the tubular valve body inwall is θ, 30 °≤θ≤60 °.
The two-door safety check in described a kind of inclined-plane, two flap oval rim have been led the conical surface, and when flap was closed sealing fully, this conical surface contacted fully with the inwall of tubular valve body.Can increase sealability.
The two-door safety check in described a kind of inclined-plane fixedly installs a horizontal pin along tubular valve body diameter and with the strut parallel direction between two pressing plates.Can prevent that two plate valves from excessively overturning, and can not get back to working position.
The two-door tube wall sealing in described a kind of inclined-plane safety check vertically is provided with a vertical lever on the depression bar.Can prevent that also two plate valves from excessively overturning, can not get back to working position.
The two-door safety check in described a kind of inclined-plane, flap is identical with the oval rubber cushion of platen shape and half sheet, and is slightly less than the oval rubber cushion of half sheet.
The two-door safety check in this kind inclined-plane, reasonable in design, compact structure is saved material, and good seal performance is easy to use.
Further specify the utility model below in conjunction with Figure of description, and provide embodiment.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sectional view of the utility model A-A.
As shown in Figure 1, the two-door safety check in a kind of inclined-plane comprises tubular valve body 6 and two flaps 3, is fixed with a strut 1 along diametric(al) in the valve body 6, and these strut 1 two ends are connected with tubular valve body 6 by connecting screw.One oval rubber cushion 4 is converted into " V " shape along oval minor axis, and a depression bar 2 that cooperates with strut 1 is arranged on the minor axis position of oval rubber cushion 4, and is connected with strut 1 by connecting screw, and rubber cushion 4 is fixed on the strut 1.Two flaps 3 are half elliptic, be separately positioned on the down either side of the rubber cushion 4 that is converted into " V " shape, two half elliptic pressing plates 5 are separately positioned on the top, both sides of the rubber cushion 4 that is converted into " V " shape, be fixed together by connecting screw pressing plate 5, rubber cushion 4 and flap 3, flap 3 is identical with the oval rubber cushion 4 of pressing plate 5 shapes and half sheet, and is slightly less than the oval rubber cushion 4 of half sheet.When flap 3 contacted fully with tubular valve body 6 inwalls, the angle theta between flap 3 and tubular valve body 6 inwalls was 45 °, and two flap 3 oval rim have been led the conical surface, and when flap 3 was closed fully, this conical surface contacted fully with tubular valve body 6 inwalls.3 of two flaps fixedly install a horizontal pin 7 along tubular valve body 6 diameters and with strut 1 parallel direction.Also can a screw vertically be set on depression bar 2 as vertical lever.This Figure of description has provided one section of the centre of valve body, and the valve body two ends are connecting end, can adopt flange-type, rib-loop formula or FERRULETYPE etc.
During use, when the fluid forward leads to the two-door safety check in this kind inclined-plane, the 3 stressed unlatchings of two flaps, fluid is by the two-door safety check in inclined-plane; When fluid stops, the fluid feedback effect that flows through in the pipeline is on two flaps 3, two flaps, 3 stressed closures, because the pressure reduction of fluid, two flap 3 oval conical surfaces and the complete contact seal of tubular valve body 6 inwalls, rubber cushion 4 is pressed on the sealing strip edge under the effect of pressing plate 5, play further seal action, and fluid can not pass through the two-door safety check in inclined-plane.When maintenance or transposing valve body parts, open connecting screw and get final product.
Claims (5)
1, the two-door safety check in a kind of inclined-plane, comprise tubular valve body (6) and two flaps (3), it is characterized in that being fixed with a strut (1) along diametric(al) in the valve body (6), one oval rubber cushion (4) is converted into " V " shape along oval minor axis, one depression bar (2) that cooperates with strut (1) is arranged on the minor axis position of oval rubber cushion (4), and rubber cushion (4) is fixed on the strut (1), two flaps (3) are half elliptic, be separately positioned on the down either side that is converted into " V " shape rubber cushion (4), two pressing plates (5) are separately positioned on the top, both sides that is converted into " V " shape rubber cushion (4), and be fixed together with rubber cushion (4) and flap (3), during the complete contact seal of flap (3) and tubular valve body (6) inwall, angle between flap (3) and tubular valve body (6) inwall is θ, 30 °≤θ≤60 °.
2, the two-door safety check in a kind of inclined-plane as claimed in claim 1 is characterized in that the oval rim of two flaps (3) has been led the conical surface, and when flap (3) was closed sealing fully, this conical surface contacted fully with the inwall of tubular valve body (6).
3, the two-door safety check in a kind of inclined-plane as claimed in claim 1 is characterized in that fixedly installing a horizontal pin (7) along tubular valve body (6) diameter and with strut (1) parallel direction between two pressing plates (5).
4, the two-door tube wall sealing in a kind of inclined-plane as claimed in claim 1 safety check is characterized in that vertically being provided with on the depression bar (2) a vertical lever.
5, the two-door safety check in a kind of inclined-plane as claimed in claim 1 is characterized in that described flap (3) is identical with the oval rubber cushion of half sheet (4) with pressing plate (5) shape, and is slightly less than the oval rubber cushion (4) of half sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218014 CN2429701Y (en) | 2000-06-14 | 2000-06-14 | Stop valve with declined surface and two gates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218014 CN2429701Y (en) | 2000-06-14 | 2000-06-14 | Stop valve with declined surface and two gates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2429701Y true CN2429701Y (en) | 2001-05-09 |
Family
ID=33583476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00218014 Expired - Fee Related CN2429701Y (en) | 2000-06-14 | 2000-06-14 | Stop valve with declined surface and two gates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2429701Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306165C (en) * | 2004-01-16 | 2007-03-21 | 北京工业大学 | Reciprocating valveless pump with consecutively changeable cone angle |
| CN100353103C (en) * | 2004-11-18 | 2007-12-05 | 中国核动力研究设计院 | Full-flow buffer check valve |
| CN104633202B (en) * | 2014-12-08 | 2017-01-04 | 高凯旋 | A kind of built in pipeline Combined pressure reducing valve |
| CN106763923A (en) * | 2016-12-15 | 2017-05-31 | 中国北方车辆研究所 | Anti-backflow one-way cock |
-
2000
- 2000-06-14 CN CN 00218014 patent/CN2429701Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306165C (en) * | 2004-01-16 | 2007-03-21 | 北京工业大学 | Reciprocating valveless pump with consecutively changeable cone angle |
| CN100353103C (en) * | 2004-11-18 | 2007-12-05 | 中国核动力研究设计院 | Full-flow buffer check valve |
| CN104633202B (en) * | 2014-12-08 | 2017-01-04 | 高凯旋 | A kind of built in pipeline Combined pressure reducing valve |
| CN106763923A (en) * | 2016-12-15 | 2017-05-31 | 中国北方车辆研究所 | Anti-backflow one-way cock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| FG1K | Grant of utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |