CN203703175U - High sealing butterfly valve - Google Patents
High sealing butterfly valve Download PDFInfo
- Publication number
- CN203703175U CN203703175U CN201320892346.8U CN201320892346U CN203703175U CN 203703175 U CN203703175 U CN 203703175U CN 201320892346 U CN201320892346 U CN 201320892346U CN 203703175 U CN203703175 U CN 203703175U
- Authority
- CN
- China
- Prior art keywords
- groove
- seal ring
- valve seat
- vacuum
- butterfly valve
- 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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- Lift Valve (AREA)
Abstract
The utility model discloses a high sealing butterfly valve, which comprises a valve seat and a valve clack, wherein a first groove is set along the circumference of the inner rim of the valve seat on the inner rim of the valve seat; two edges of the first groove are protruding inwardly to form a first protruding edge; the first groove is provided with an external sealing loop inside; the first groove is communicated with a first vacuum-pumping aperture; the first vacuum-pumping aperture seals a first pricker sealing when the first groove is pumped vacuum; a second groove is set along the circumference of the outer rim of the valve clack on the outer rim of the valve clack; two edges of the second groove are protruding inwardly to form a second protruding edge; the second groove is provided with an internal sealing loop inside; the second groove is communicated with a second vacuum-pumping aperture; and the second vacuum-pumping aperture seals a second pricker sealing when the second groove is pumped vacuum. The advantage of the utility model is that both the inner and the outer sealing loop will not fall off easily.
Description
Technical field
The present invention relates to valve technology field, especially relate to a kind of high-sealing butterfly valve.
Background technique
Butterfly valve, by its valve seat and the cooperation between the flap of this valve seat inside, is realized the opening and closing of this butterfly valve.In order to make this butterfly valve there is good sealing in the time closing, many producers by being provided with the mode that is provided with inner seal ring in the outer rim of exterior seal ring, this flap on the inner edge of this valve seat, thereby the favorable elasticity having by means of this inside and outside seal ring, makes this butterfly valve have good sealing effect.But this inside and outside seal ring is all easy to come off, and then this butterfly valve cannot be worked.
Summary of the invention
The object of this invention is to provide a kind of high-sealing butterfly valve, it has the feature of the equal difficult drop-off of inside and outside seal ring.
The technical solution adopted in the present invention is: high-sealing butterfly valve, comprise valve seat and flap,
---on the inner edge of described valve seat, be provided with the first groove along the circumference of this valve seat inner edge, two edges of this first groove are all to projecting inward formation the first convex edge, and be provided with exterior seal ring in this first groove, this first groove is communicated with first and vacuumizes hole, and this first vacuumizes and on hole, after this first groove vacuum pumping, be sealed with the first pricker envelope;
---in the outer rim of described flap, be provided with the second groove along the circumference of this flap outer rim, two edges of this second groove are all to projecting inward formation the second convex edge, and be provided with inner seal ring in this second groove, this second groove is communicated with second and vacuumizes hole, and this second vacuumizes and on hole, after this second groove vacuum pumping, be sealed with the second pricker envelope.
The advantage that the present invention has is: the equal difficult drop-off of inside and outside seal ring.The inside and outside seal ring of high-sealing butterfly valve of the present invention is clamped by this second convex edge and this first convex edge respectively, and all vacuum pumpings in this first groove and this second groove, thereby make this inside and outside seal ring being fitted in this second groove, the first groove tightly, reduced the probability that this inside and outside seal ring comes off.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is that the master of embodiments of the invention looks sectional view (part).
In figure: 10, valve seat, 11, the first groove, 111, the first convex edge, 112, first vacuumize hole; 20, flap, 21, the second groove, 211, the second convex edge, 212, second vacuumize hole; 30, exterior seal ring; 40, the first pricker envelope; 50, inner seal ring; 60, the second pricker envelope.
Embodiment
Embodiment, as shown in Figure 1: high-sealing butterfly valve, comprises valve seat 10 and flap 20.Concrete, on the inner edge of this valve seat 10, be provided with the first groove 11 along the circumference of these valve seat 10 inner edges.Two edges of this first groove 11 are all to the first convex edge 111, projecting inward formation 2 road, and are provided with exterior seal ring 30 in this first groove 11.Obviously the draw-in groove that, the both sides of this exterior seal ring 30 should be provided with and this first convex edge 111 matches.This first groove 11 is communicated with first and vacuumizes hole 112, and this first vacuumizes and on hole 112, after these the first groove 11 vacuum pumpings, be sealed with the first pricker envelope 40.In the outer rim of this flap 20, be provided with the second groove 21 along the circumference of these flap 20 outer rims.Two edges of this second groove 21 are all to the second convex edge 211, projecting inward formation 2 road, and are provided with inner seal ring 50 in this second groove 21.Obviously the draw-in groove that, the both sides of this inner seal ring 50 should be provided with and this second convex edge 211 matches.This second groove 21 is communicated with second and vacuumizes hole 212, and this second vacuumizes and on hole 212, after these the second groove 21 vacuum pumpings, be sealed with the second pricker envelope 60.Like this, this inner seal ring 50, exterior seal ring 30 are clamped by this second convex edge 211 and this first convex edge 111 respectively, and this first groove 11 and the interior equal vacuum pumping of this second groove 21, thereby make this inner seal ring 50, exterior seal ring 30 being fitted in this second groove 21, the first groove 11 tightly, reduced the probability that this inner seal ring 50, exterior seal ring 30 come off.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (1)
1. high-sealing butterfly valve, comprises valve seat (10) and flap (20), it is characterized in that:
---on the inner edge of described valve seat (10), be provided with the first groove (11) along the circumference of this valve seat (10) inner edge, two edges of this first groove (11) are all to projecting inward formation the first convex edge (111), and be provided with exterior seal ring (30) in this first groove (11), this first groove (11) is communicated with first and vacuumizes hole (112), and this first vacuumizes the upper first pricker envelope (40) that is sealed with after this first groove (11) vacuum pumping in hole (112);
---in the outer rim of described flap (20), be provided with the second groove (21) along the circumference of this flap (20) outer rim, two edges of this second groove (21) are all to projecting inward formation the second convex edge (211), and be provided with inner seal ring (50) in this second groove (21), this second groove (21) is communicated with second and vacuumizes hole (212), and this second vacuumizes the upper second pricker envelope (60) that is sealed with after this second groove (21) vacuum pumping in hole (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892346.8U CN203703175U (en) | 2013-12-30 | 2013-12-30 | High sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892346.8U CN203703175U (en) | 2013-12-30 | 2013-12-30 | High sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703175U true CN203703175U (en) | 2014-07-09 |
Family
ID=51053620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892346.8U Expired - Fee Related CN203703175U (en) | 2013-12-30 | 2013-12-30 | High sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387825A (en) * | 2017-07-31 | 2017-11-24 | 陈炯亮 | A kind of pressure-reducing valve |
-
2013
- 2013-12-30 CN CN201320892346.8U patent/CN203703175U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387825A (en) * | 2017-07-31 | 2017-11-24 | 陈炯亮 | A kind of pressure-reducing valve |
| CN107387825B (en) * | 2017-07-31 | 2024-04-05 | 陈炯亮 | Pressure reducing 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: 20140709 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |