CN210034458U - Bidirectional hard seal butterfly valve with valve body sealing ring capable of jogging - Google Patents
Bidirectional hard seal butterfly valve with valve body sealing ring capable of jogging Download PDFInfo
- Publication number
- CN210034458U CN210034458U CN201920965820.2U CN201920965820U CN210034458U CN 210034458 U CN210034458 U CN 210034458U CN 201920965820 U CN201920965820 U CN 201920965820U CN 210034458 U CN210034458 U CN 210034458U
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- valve body
- ring
- valve
- boss
- sealing ring
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Abstract
The utility model discloses a two-way hard seal butterfly valve with a valve body sealing ring capable of jogging, which comprises a cylindrical valve body, a water inlet is arranged at the front end of the valve body, a water outlet is arranged at the rear end of the valve body, a valve shaft seat is arranged on the valve body, a valve body sealing seat consisting of the inner circumference of the valve body and a circular boss arranged in the inner circumference of the valve body is arranged in the inner circumference of the valve body, a plurality of through screw holes are evenly distributed along the circumference on the circular boss, a plurality of screw holes matched with the screw holes evenly distributed on the circular boss are evenly distributed along the circumference on the valve body metal sealing ring, the valve body metal sealing ring is embedded on the valve body sealing seat by connecting bolts screwed on the through screw holes on the circular boss and the screw holes, the circular ring surface of the boss of the valve body sealing seat is provided with a circular ring-shaped groove, an elastic circular ring is arranged in the groove, and a gap of 0.1-1 mm is reserved between the bolt head of the connecting bolt and the circular ring surface of the boss. The utility model is used for can realize two way seal when on the fluid pipeline.
Description
Technical Field
The utility model relates to a two-way butterfly valve sealed firmly, specifically speaking relate to a two-way butterfly valve sealed firmly that valve body sealing ring can fine motion.
Background
The hard sealing butterfly valve has a cylindrical valve body, the front end of the valve body has a water inlet, the rear end of the valve body has a water outlet, a valve shaft is arranged on the valve body, one section of the valve shaft in the valve body is connected with a butterfly plate, the outer circumference of the butterfly plate is provided with a butterfly plate metal sealing ring, the inner circumference of the valve body is provided with a valve body sealing seat consisting of a circular ring-shaped boss in the inner circumference of the valve body and the inner circumference of the valve body, the boss is uniformly provided with a penetrating screw hole, the valve body metal sealing ring is provided with a half screw hole matched with the screw hole uniformly distributed on the boss, the valve body metal sealing ring is embedded on the valve body sealing seat by a connecting bolt tightly screwed on the penetrating screw hole on the boss.
In the prior art, the valve body metal sealing ring is fixedly connected to the valve body sealing seat, namely, the valve body metal sealing ring is embedded on the valve body sealing seat by using a tightly-screwed bolt, and no gap exists between the bolt head and the circular ring surface of the boss. The hard seal butterfly valve is only suitable for sealing when forward fluid flows in a pipeline after being assembled, when reverse fluid flows in the pipeline, the reverse flowing fluid can push the butterfly plate to generate micro motion, but the valve body metal sealing ring cannot generate follow-up motion, micro motion of the butterfly plate enables a micro gap to be generated between the butterfly plate metal sealing ring and the valve body metal sealing ring, so that leakage is caused by untight reverse seal, and the hard seal butterfly valve cannot be used for bidirectional seal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the above-mentioned not enough, provide a can realize two-way sealed butterfly valve firmly that two-way sealed valve body sealing ring can fine motion.
In order to solve the technical problem, the utility model discloses a two-way hard seal butterfly valve with valve body sealing ring capable of jogging, which comprises a cylindrical valve body, a water inlet is arranged at the front end of the valve body, a water outlet is arranged at the rear end of the valve body, a valve shaft seat is arranged on the valve body, a valve body sealing seat consisting of a circular boss arranged in the inner circumference of the valve body and a circular boss arranged in the inner circumference of the valve body is arranged on the inner circumference of the valve body, a plurality of through screw holes are uniformly distributed on the circular boss along the circumference, a plurality of screw holes matched with the screw holes uniformly distributed on the circular boss are uniformly distributed on the metal sealing ring of the valve body along the circumference, the metal sealing ring of the valve body is embedded on the valve body sealing seat by connecting bolts screwed on the through screw holes on the circular boss and the screw holes on the metal sealing, an elastic ring is arranged in the circular groove, and a gap of 0.1-1 mm is reserved between the circular ring surface of the outer boss of the circular boss far away from the metal sealing ring of the valve body and the bolt head of the connecting bolt.
The elastic ring can be a rubber ring with an O-shaped section.
The elastic ring can also be a metal elastic ring.
The utility model discloses when being used in forward fluid pipeline, butterfly plate metal seal ring tightly supports and realizes forward sealedly on valve body metal seal ring, and when being used in reverse fluid pipeline, reverse flow's fluid can promote the butterfly plate and produce the fine motion, because there is annular groove on the interior boss ring surface that annular boss is close to valve body metal seal ring, and there is 0.1-1 mm's clearance annular groove in the annular groove, and annular boss keeps away from valve body metal seal ring's outer boss ring surface and connecting bolt's bolt head, and consequently the elasticity of elasticity ring can make valve body metal seal ring also produce corresponding fine motion along with the fine motion of butterfly plate, keeps butterfly plate metal seal ring tightly to realize reverse sealedly on valve body metal seal ring all the time.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic view of the valve body of the two-way hard seal butterfly valve with the valve body sealing ring capable of jogging.
Fig. 2 is a schematic side sectional view of fig. 1.
Fig. 3 is an enlarged schematic view of the structure at I in fig. 2.
Fig. 4 is an enlarged schematic view of the structure at II in fig. 3.
Fig. 5 and 6 are enlarged schematic views of the structure at III in fig. 3.
Detailed Description
Referring to fig. 1-5, the valve body of the two-way hard seal butterfly valve with the micro-motion sealing ring of the invention is a cylindrical valve body 1, the front end of the valve body is provided with a water inlet 2, the rear end of the valve body is provided with a water outlet 3, the valve body is provided with a valve shaft seat 4, the inner circumference of the valve body is provided with a valve body seal seat consisting of the inner circumference 5 of the valve body and a circular ring boss 6 in the inner circumference of the valve body, the circular ring boss is uniformly provided with a plurality of through screw holes 7 along the circumference, the valve body metal sealing ring is uniformly provided with a plurality of screw holes 8 matched with the screw holes uniformly distributed on the circular ring boss along the circumference, the valve body metal sealing ring 9 is embedded on the valve body seal seat by connecting bolts 10 of the through screw holes screwed on the circular ring boss and the screw holes on the valve body metal sealing ring, a sealing ring 11 is arranged between the, the rubber ring 13 with the O-shaped section is arranged in the circular groove, and a gap b of 0.1-1 mm is reserved between the circular ring surface 62 of the outer boss of the circular boss 6 far away from the metal sealing ring 9 of the valve body and the bolt head of the connecting bolt.
According to the assembly method of the hard seal butterfly valve in the prior art, the valve shaft is arranged on the valve shaft seat of the valve body, the butterfly plate is arranged on the valve shaft in the valve body, and the metal seal ring of the butterfly plate is matched with the metal seal ring of the valve body, namely the two-way hard seal butterfly valve with the seal ring capable of micro-moving.
The elastic ring in the annular groove is a rubber ring with an O-shaped section. The elastic ring in the groove can also be a metal spring. The metal spring can be a circular ring spring with a V-shaped section or a spiral spring ring.
In fig. 6, the elastic ring in the circular groove is a circular spring 14 with a V-shaped cross section.
Claims (5)
1. The utility model provides a two-way hard seal butterfly valve that valve body sealing ring can fine motion, there is the cylinder valve body, the front end of valve body has the water inlet, the rear end of valve body has the delivery port, there is the valve shaft seat on the valve body, circle the valve body seal receptacle that circle ring shape boss in circle and the interior circumference of valve body constitutes in the circle in the valve body, circle the ring shape boss and go up along the circumference equipartition and have a plurality of penetrating screws with the screw matched with of equipartition on the ring shape boss, valve body metal seal ring inlays on the valve body seal receptacle with the connecting bolt who revolves the penetrating screw on the ring shape boss and the screw on the valve body metal seal ring, there is the sealing ring between the circumference in the outer circumference of valve body metal seal: the annular surface of the inner boss of the annular boss close to the metal sealing ring of the valve body is provided with an annular groove, an elastic annular ring is arranged in the annular groove, and the annular surface of the outer boss of the annular boss far away from the metal sealing ring of the valve body is provided with a gap of 0.1-1 mm with the bolt head of the connecting bolt.
2. The bi-directional hard seal butterfly valve of claim 1 in which the valve body sealing ring is capable of micro-motion, comprising: the elastic ring is a rubber ring with an O-shaped section.
3. The bi-directional hard seal butterfly valve of claim 1 in which the valve body sealing ring is capable of micro-motion, comprising: the elastic ring is a metal elastic ring.
4. The bi-directional hard seal butterfly valve of claim 3 in which the valve body sealing ring is capable of micro-motion, the butterfly valve further comprising: the metal elastic ring is a ring spring with a V-shaped section.
5. The bi-directional hard seal butterfly valve of claim 3 in which the valve body sealing ring is capable of micro-motion, the butterfly valve further comprising: the metal elastic ring is a spiral spring ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920965820.2U CN210034458U (en) | 2019-06-26 | 2019-06-26 | Bidirectional hard seal butterfly valve with valve body sealing ring capable of jogging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920965820.2U CN210034458U (en) | 2019-06-26 | 2019-06-26 | Bidirectional hard seal butterfly valve with valve body sealing ring capable of jogging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034458U true CN210034458U (en) | 2020-02-07 |
Family
ID=69348694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920965820.2U Active CN210034458U (en) | 2019-06-26 | 2019-06-26 | Bidirectional hard seal butterfly valve with valve body sealing ring capable of jogging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034458U (en) |
-
2019
- 2019-06-26 CN CN201920965820.2U patent/CN210034458U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |