CN203363216U - Synthetic rubber sleeve device of butterfly valve - Google Patents
Synthetic rubber sleeve device of butterfly valve Download PDFInfo
- Publication number
- CN203363216U CN203363216U CN 201320441174 CN201320441174U CN203363216U CN 203363216 U CN203363216 U CN 203363216U CN 201320441174 CN201320441174 CN 201320441174 CN 201320441174 U CN201320441174 U CN 201320441174U CN 203363216 U CN203363216 U CN 203363216U
- Authority
- CN
- China
- Prior art keywords
- rubber sleeve
- seal ring
- axis hole
- gum cover
- 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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Abstract
The utility model discloses a synthetic rubber sleeve device of a butterfly valve. The synthetic rubber sleeve device consists of a hard rubber sleeve, axle holes, axle hole sealing rings, an inner synthetic rubber sleeve and end surface sealing rings, wherein the inner synthetic rubber sleeve is arranged inside the tubular hard rubber sleeve; the concentric axle holes are formed in the hard rubber sleeve and the inner synthetic rubber sleeve in the radial direction; the end surface sealing rings are arranged on two sides of the hard rubber sleeve respectively; at least one sealing ring is arranged on each end surface sealing ring; the axle hole sealing rings are arranged on the outer sides of the axle holes; at least one sealing ring is arranged on each axle hole sealing ring. The outer sealing rings synthesized by relatively soft rubber are adopted in the axle holes of rubber, and the outer sealing rings synthesized by relatively soft rubber are adopted at the end surfaces of the rubber, so that the sealing combination surface of a valve body and a pipeline flange is widened, the sealing is compact, and the service life is prolonged.
Description
Technical field
the utility model relates to the butterfly valve of pipeline, especially a kind of rubber synthetic cement covering device of butterfly valve.
Background technique
original gum cover is hard backrest, and gel content mostly is 40% most, and finished product is harder, in assembling, with in the coordinating of valve body, there will be big or small improperly, and the excessive poorly sealed or too little installation in gap is not gone up, or gum cover occurs that the phenomenons such as crackle, bulge directly become waste product.Two reserved axis holes are arranged at the gum cover two ends, and hard backrest gum cover axis hole place often there will be and poorly sealedly from axis hole, leaks and enter valve body, causes valve body to damage.Gum cover is originally as the round structure thing, the finished product butterfly valve is connected pressing from both sides with flange on pipeline by gum cover itself when pipeline is installed, and the circular tangent plane width of gum cover itself is limited, flange with only have coordinating of gum cover seldom a part of, easily cause and leak or the crushing gum cover, cause valve not use.In view of above-mentioned many reasons, need to improve the rubber gum cover device of pipeline butterfly valve.
Summary of the invention
the utility model enters valve body for the axis hole place of understanding the butterfly valve gum cover leaks, cause valve body to damage, the sealed faying face that the gum cover of valve body and piping flange connect is narrow, can not bear higher hydraulic pressure, the junction plane of crushing gum cover or easily cause and leak, by rational design, a kind of rubber synthetic cement covering device of butterfly valve is provided, the end face of gum cover and axis hole adopt the more soft synthetic outside seal circle of rubber, widened the cooperation width while being connected with piping flange, the probability that leaks from sealed faying face is down to minimum, has extended working life.
the utility model, in order to realize above-mentioned goal of the invention, adopts following technological scheme: a kind of rubber synthetic cement covering device of butterfly valve is to consist of ebonite gum cover, axis hole, axis hole seal ring, synthetic cement inner sleeve, end-face seal ring; In the ebonite gum cover of tubulose, the synthetic cement inner sleeve is set, in ebonite gum cover and synthetic cement, puts concentric axis hole radially is set; Ebonite gum cover both sides arrange respectively end-face seal ring, and end-face seal ring at least arranges a circle seal ring; Axis hole arranged outside axis hole seal ring, the axis hole seal ring at least arranges a circle seal ring.
beneficial effect: appropriate design, adopt the more soft synthetic outside seal circle of rubber in the axis hole of rubber, the end face of rubber adopts the more soft synthetic outside seal circle of rubber, has widened the sealed faying face of valve body and piping flange, seal tightly, increase the service life.
the utility model installs seal ring additional in the gum cover outer ring, and thickness is concordant with cushion rubber protrusion valve body height, and width is concordant with the valve body outer rim, with glue, is bonded on valve body.Because seal ring is dismountable, when leaking or be poorly sealed with the pipeline mounting flange, gum cover can play seal action better.Dismounting is very convenient, and can play the effect of secondary seal, it has guaranteed the circular transverse cross-sectional of gum cover and pipeline coupling flange, directly encased valve body, widened the cooperation width while being connected with piping flange, the probability that leaks from sealed faying face is down to minimum, the large loss of avoiding leaking outside and causing.Handsome in appearance, save material, extend valve working life.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
fig. 1 is: the general assembly structural representation.
fig. 2 is: the sectional structure schematic diagram.
fig. 3 is: side is cutd open structural representation.
in figure: ebonite gum cover 1, axis hole 2, axis hole seal ring 3, synthetic cement inner sleeve 4, end-face seal ring 5.
Embodiment
below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
as shown in the figure; In the ebonite gum cover 1 of tubulose, synthetic cement inner sleeve 4 is set, on ebonite gum cover 1 and synthetic cement inner sleeve 4, concentric axis hole 2 radially is set; Ebonite gum cover 1 both sides arrange respectively end-face seal ring 5, and end-face seal ring 5 at least arranges a circle seal ring; Axis hole 2 arranged outside axis hole seal rings 3, axis hole seal ring 3 at least arranges a circle seal ring.
Claims (3)
1. the rubber synthetic cement covering device of a butterfly valve, be to consist of ebonite gum cover (1), axis hole (2), axis hole seal ring (3), synthetic cement inner sleeve (4), end-face seal ring (5); It is characterized in that: in the ebonite gum cover (1) of tubulose, synthetic cement inner sleeve (4) is set, on ebonite gum cover (1) and synthetic cement inner sleeve (4), concentric axis hole (2) radially is set.
2. according to the rubber synthetic cement covering device of a kind of butterfly valve described in claim 1, it is characterized in that: ebonite gum cover (1) both sides arrange respectively end-face seal ring (5), and end-face seal ring (5) at least arranges a circle seal ring.
3. according to the rubber synthetic cement covering device of a kind of butterfly valve described in claim 1, it is characterized in that: axis hole (2) arranged outside axis hole seal ring (3), axis hole seal ring (3) at least arranges a circle seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320441174 CN203363216U (en) | 2013-07-23 | 2013-07-23 | Synthetic rubber sleeve device of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320441174 CN203363216U (en) | 2013-07-23 | 2013-07-23 | Synthetic rubber sleeve device of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203363216U true CN203363216U (en) | 2013-12-25 |
Family
ID=49810981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320441174 Expired - Fee Related CN203363216U (en) | 2013-07-23 | 2013-07-23 | Synthetic rubber sleeve device of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203363216U (en) |
-
2013
- 2013-07-23 CN CN 201320441174 patent/CN203363216U/en not_active Expired - Fee Related
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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: 20131225 Termination date: 20140723 |
|
| EXPY | Termination of patent right or utility model |