CN202708395U - 8-shaped blind flange - Google Patents
8-shaped blind flange Download PDFInfo
- Publication number
- CN202708395U CN202708395U CN 201220399721 CN201220399721U CN202708395U CN 202708395 U CN202708395 U CN 202708395U CN 201220399721 CN201220399721 CN 201220399721 CN 201220399721 U CN201220399721 U CN 201220399721U CN 202708395 U CN202708395 U CN 202708395U
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- China
- Prior art keywords
- plate
- circular groove
- flange
- blind plate
- circular
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- Expired - Fee Related
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Abstract
The utility model relates to an 8-shaped blind flange which comprises a discoid solid blind flange, a flange plate and a lifting handle which connects the solid blind flange and the flange plate. The thickness and the outer diameter of the solid blind flange are equal to the thickness and the outer diameter of the flange plate. A flange hole is arranged in the flange plate. One axial side of the flange plate is provided with a circular groove to form a circular boss along the periphery of the flange plate. The other side is provided with a central circular groove. The diameter of the central circular groove is larger than the outer diameter of the circular boss. The circular boss, the central circular groove and the flange hole are coaxially arranged. One axial side of the blind flange is provided with a circular groove to form a circular truncated cone along the periphery of the blind flange. The circular truncated cone and the circular boss are arranged on the same side. The height of the circular truncated cone is equal to the height of the circular boss and the outer diameter of the circular truncated cone is equal to the outer diameter of the circular boss. A circular groove is placed in the solid blind flange, wherein the depth the circular groove is equal to the depth of the circular groove, the diameter of the central circular groove is equal to the diameter of the circular groove, and the circular truncated cone and the solid blind flange are coaxially arranged. Compared with the blind flange in the prior art, the 8-shaped blind flange has the advantages of being good in seal and increasing pipe loading capacity.
Description
Technical field
The utility model relates to the blind plate technical field, is specifically related to a kind of 8 word blind plates of good airproof performance.
Background technique
The regular title of blind plate (blind disk) is blind flange, and what have also is called blind flange.Blind plate from the appearance generally is divided into board-like dull and stereotyped blind plate, 8 font blind plates, plate and gasket ring (plate and gasket ring are blind logical each other).The figure-eight blank structure for half be blind plate half be flange plate, needing to be usually used in the pipeline flange of change flow, make things convenient for the maintenance of pipeline; It is unimpeded to take the spacing holding tube line with flange one end at ordinary times, is changed to the blind plate of the other end condition of equivalent thickness when needing to block pipeline, avoids replacing other blind plates temporarily and causes pipeline to be forced to expansion, affects whole system.
At present, the solid blind plate of figure-eight blank (such as Fig. 1) and the sealing surface of flange plate are plane layout, and there is the little defective of sealing bearing capacity poor and pipeline in 8 word blind plates under this structure.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of good airproof performance, and can effectively increase the figure-eight blank of pipeline bearing capacity.
For achieving the above object, the utility model provides following technological scheme: a kind of figure-eight blank, include solid blind plate, flange plate and lifting handle, described lifting handle one end is connected with solid blind plate, the other end is connected with flange plate, described solid blind plate is plate-like, solid blind plate equates with thickness and the external diameter of flange plate, flange plate is provided with the flange hole of setting coaxial with it, it is characterized in that: the axial side of described flange plate is offered annular short slot along the flange plate periphery and is formed round ring boss, the another side offers the central, circular groove, the diameter of described central, circular groove is greater than described round ring boss external diameter, described round ring boss, the coaxial setting of central, circular groove and flange hole; The axial side of described solid blind plate is offered annular short slot along solid blind plate periphery and is formed round platform, described round platform and round ring boss are positioned at the same side, round platform equates with round ring boss height and external diameter, described solid blind plate is with respect to the recessed circular groove of another side central authorities that is provided with round platform one side, the degree of depth of circular groove and central, circular groove and equal diameters, and circular groove, round platform and the coaxial setting of solid blind plate.
Round ring boss height on the described flange plate is greater than the central, circular depth of groove, and the frustum cone height on the solid blind plate is greater than the circular groove degree of depth.
Be provided with two lifting handles between described solid blind plate and the flange plate, two lifting handles are circle center line connecting being symmetrical arranged as symmetry axis take solid blind plate and flange plate.
By adopting technique scheme, the solid blind plate on the blind plate and the both sides sealing face of flange plate adopt respectively the male and fomale(M﹠F) setting, be connected on the pipeline after, the both sides sealing face forms not only has radial seal, form simultaneously axial seal, increase sealing surface, greatly improved sealability; And it is more reliable firmly that the blind plate under this structural formula arranges is installed the location, increases the bearing capacity of pipeline.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the structural representation of prior art blind plate;
Fig. 2 is the plan view of the utility model specific embodiment figure-eight blank;
Fig. 3 is the structural representation of the utility model specific embodiment figure-eight blank.
Embodiment
Referring to accompanying drawing 2 and accompanying drawing 3, the disclosed a kind of figure-eight blank of the utility model includes solid blind plate 1, flange plate 2 and lifting handle 3; Described lifting handle 3 one ends are connected with solid blind plate 1, and the other end is connected with flange plate 2; Described solid blind plate 1 is plate-like, and solid blind plate 1 equates with thickness and the external diameter of flange plate 2; Being provided with 3, two liftings of two lifting handles handle 3 between solid blind plate 1 and the flange plate is take circle center line connecting being symmetrical arranged as symmetry axis of solid blind plate 1 with flange plate 2.Described flange plate 2 is provided with the flange hole 20 of setting coaxial with it; Flange plate 2 axial sides are offered annular short slot along flange plate 2 peripheries and are formed round ring boss 21, and then this face is convex surface; Flange plate 2 axial another sides offer central, circular groove 22, and the diameter of described central, circular groove 22 is greater than described round ring boss 21 external diameters, described round ring boss 21, central, circular groove 22 and flange hole 20 coaxial settings; Described solid blind plate 1 an axial side is offered annular short slot along solid blind plate 1 periphery and is formed round platform 11, described round platform 11 is positioned at the same side with round ring boss 21, round platform 11 equates with round ring boss 21 height and external diameter, described solid blind plate 1 is with respect to the recessed circular groove 12 of another side central authorities that is provided with round platform 11 1 sides, the degree of depth and the equal diameters of circular groove 12 and central, circular groove 22, and circular groove 12, round platform 11 and solid blind plate 1 coaxial setting.
In this specific embodiment, round ring boss 21 height on the described flange plate 2 are greater than central, circular groove 22 degree of depth, and round platform 11 height on the solid blind plate 1 are greater than circular groove 12 degree of depth.
Above-described embodiment only is used for the usefulness of explanation the utility model; be not to restriction of the present utility model; those of ordinary skills are under the guidance of the utility model connotation; also can make corresponding distortion and modification, so all technological schemes that are equal to all fall in the protection category of the present utility model.
Claims (3)
1. figure-eight blank, include solid blind plate, flange plate and lifting handle, described lifting handle one end is connected with solid blind plate, the other end is connected with flange plate, described solid blind plate is plate-like, solid blind plate equates with thickness and the external diameter of flange plate, flange plate is provided with the flange hole of setting coaxial with it, it is characterized in that: the axial side of described flange plate is offered annular short slot along the flange plate periphery and is formed round ring boss, the another side offers the central, circular groove, the diameter of described central, circular groove is greater than described round ring boss external diameter, described round ring boss, the coaxial setting of central, circular groove and flange hole; The axial side of described solid blind plate is offered annular short slot along solid blind plate periphery and is formed round platform, described round platform and round ring boss are positioned at the same side, round platform equates with round ring boss height and external diameter, described solid blind plate is with respect to the recessed circular groove of another side central authorities that is provided with round platform one side, the degree of depth of circular groove and central, circular groove and equal diameters, and circular groove, round platform and the coaxial setting of solid blind plate.
2. figure-eight blank according to claim 1, it is characterized in that: the round ring boss height on the described flange plate is greater than the central, circular depth of groove, and the frustum cone height on the solid blind plate is greater than the circular groove degree of depth.
3. figure-eight blank according to claim 1 and 2 is characterized in that: be provided with two lifting handles between described solid blind plate and the flange plate, two lifting handles are circle center line connecting being symmetrical arranged as symmetry axis take solid blind plate and flange plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399721 CN202708395U (en) | 2012-08-13 | 2012-08-13 | 8-shaped blind flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399721 CN202708395U (en) | 2012-08-13 | 2012-08-13 | 8-shaped blind flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708395U true CN202708395U (en) | 2013-01-30 |
Family
ID=47588701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220399721 Expired - Fee Related CN202708395U (en) | 2012-08-13 | 2012-08-13 | 8-shaped blind flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708395U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838532A (en) * | 2015-12-04 | 2017-06-13 | 潘珺珺 | A kind of blind plate for conveyance conduit |
| CN108916499A (en) * | 2018-09-04 | 2018-11-30 | 扬州中远海运重工有限公司 | Modified marine dual blank flange and its position switching method |
| CN109519647A (en) * | 2017-09-20 | 2019-03-26 | 沈阳铝镁设计研究院有限公司 | A kind of 8 word blind plates |
-
2012
- 2012-08-13 CN CN 201220399721 patent/CN202708395U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838532A (en) * | 2015-12-04 | 2017-06-13 | 潘珺珺 | A kind of blind plate for conveyance conduit |
| CN109519647A (en) * | 2017-09-20 | 2019-03-26 | 沈阳铝镁设计研究院有限公司 | A kind of 8 word blind plates |
| CN108916499A (en) * | 2018-09-04 | 2018-11-30 | 扬州中远海运重工有限公司 | Modified marine dual blank flange and its position switching method |
| CN108916499B (en) * | 2018-09-04 | 2024-03-15 | 扬州中远海运重工有限公司 | Improved marine duplex blind flange and position switching method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170224 Address after: Ruian City, Wenzhou City, Zhejiang province 325000 Feiyun Economic Development Zone District (Sha Yuan Cun) Patentee after: Zhejiang FeiTing special materials Polytron Technologies Inc Address before: 325200 Binjiang Road, Ruian Economic Development Zone, Zhejiang, China, No. 1366, No. Patentee before: Zhejiang Feiting Tube Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20180813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |