CN209762501U - flange - Google Patents
flange Download PDFInfo
- Publication number
- CN209762501U CN209762501U CN201920154766.3U CN201920154766U CN209762501U CN 209762501 U CN209762501 U CN 209762501U CN 201920154766 U CN201920154766 U CN 201920154766U CN 209762501 U CN209762501 U CN 209762501U
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- flange
- gasket
- annular
- groove
- raised line
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model provides a flange, in particular to the field of flange production, which comprises a first flange and a second flange, wherein the second flange is arranged above the first flange, the edges of the first flange and the second flange are connected through bolts, an annular first raised line is arranged on the flange surface of the first flange, and the inner diameter of the first raised line is larger than the inner diameter of a pipeline of the first flange; an annular groove is formed in the upper surface of the first raised line, an annular first gasket is arranged in the groove, and the thickness of the first gasket is larger than the depth of the groove; an annular second raised line is arranged on the flange surface of the second flange, and the inner diameter of the second raised line is equal to the inner diameter of the pipeline of the second flange; an annular groove is formed in the upper surface of the second raised line, an annular second gasket is arranged in the groove, and the thickness of the second gasket is larger than the depth of the groove; and the periphery of the second convex strip can be embedded into the inner periphery of the first convex strip. The utility model discloses can improve the seal of connecting between the flange.
Description
Technical Field
The utility model belongs to flange production field, concretely relates to flange.
background
A Flange (Flange), also known as a Flange collar or Flange. The flange is a part for connecting the shafts and is used for connecting pipe ends; flanges on the inlet and the outlet of the equipment are also used for connecting the two pieces of equipment, in order to improve the tightness of the connection, a flat annular gasket is generally added between the conventional flanges, but the tightness of the conventional device is still to be improved;
In view of the above circumstances, there is a need for a flange that can improve the sealing property of the connection between flanges.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flange can improve the seal of connecting between the flange.
the utility model provides a following technical scheme:
A flange comprises a first flange and a second flange, wherein the second flange is arranged above the first flange, and the edges of the first flange and the second flange are connected through bolts;
An annular first raised line is arranged on the flange surface of the first flange, and the inner diameter of the first raised line is larger than the inner diameter of the pipeline of the first flange; an annular groove is formed in the upper surface of the first raised line, an annular first gasket is arranged in the groove, and the thickness of the first gasket is larger than the depth of the groove;
An annular second raised line is arranged on the flange surface of the second flange, and the inner diameter of the second raised line is equal to the inner diameter of the pipeline of the second flange; an annular groove is formed in the upper surface of the second raised line, an annular second gasket is arranged in the groove, and the thickness of the second gasket is larger than the depth of the groove; the periphery of the second convex strip can be embedded into the inner periphery of the first convex strip;
preferably, the cross sections of the grooves of the first convex strip and the second convex strip are semicircular; the cross sections of the first gasket and the second gasket are circular;
Preferably, the periphery of the first convex strip is sleeved with a third gasket, and the inner diameter of the third gasket is the same as the outer diameter of the first convex strip.
Preferably, the third gasket is a flat structure, that is, the cross section of the third gasket is rectangular.
Preferably, the first gasket, the second gasket and the third gasket are made of polytetrafluoroethylene.
The utility model has the advantages that:
the utility model has the advantages that the periphery of the second raised strips can be embedded into the inner periphery of the first raised strips; forming primary sealing, and then forming secondary sealing through the sealing action of the first gasket and the second gasket respectively; the tightness of flange connection can be greatly improved through multiple sealing; and the periphery of the second convex strip can be embedded into the inner periphery of the first convex strip, so that the connection precision can be improved.
Drawings
the accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a front view of the present invention;
Fig. 2 is a bottom view of the present invention.
Labeled as: 1. a first flange; 2. a second flange; 3. a first rib; 4. a second convex strip; 5. a first gasket; 6. a second gasket.
Detailed Description
as shown in fig. 1 to 2, a flange includes a first flange 1 and a second flange 2, the second flange 2 is disposed above the first flange 1, and edges of the first flange 1 and the second flange 2 are connected by bolts;
An annular first raised line 3 is arranged on the flange surface of the first flange 1, the inner diameter of the first raised line 3 is larger than the inner diameter of the pipeline of the first flange 1, so that a concave structure is formed between the first raised line 3 and the pipeline of the first flange 1, the width of the concave structure is the same as the difference between the inner diameter and the outer diameter of the second raised line 4, and the second raised line 4 can be conveniently embedded into the concave structure; an annular groove is formed in the upper surface of the first convex strip 3, an annular first gasket 5 is arranged in the groove, and the thickness of the first gasket 5 is larger than the depth of the groove, so that the first gasket 5 can be deformed to improve the sealing property; the first gasket 5 can be limited through the groove; an annular second raised strip 4 is arranged on the flange surface of the second flange 2, and the inner diameter of the second raised strip 4 is equal to the inner diameter of the pipeline of the second flange 2; an annular groove is formed in the upper surface of the second convex strip 4, an annular second gasket 6 is arranged in the groove, and the thickness of the second gasket 6 is larger than the depth of the groove; the periphery of the second convex strip 4 can be embedded into the inner periphery of the first convex strip 3, so that the second gasket 6 can be deformed to improve the tightness; the second gasket 6 can be limited through the groove;
the cross sections of the grooves of the first convex strip 3 and the second convex strip 4 are semicircular; the cross sections of the first gasket 5 and the second gasket 6 are circular; the first gasket 5 and the second gasket 6 can deform by adopting an arc-shaped structure, so that the sealing effect of the diameter of a contact surface is improved; a third gasket is sleeved on the periphery of the first convex strip 3, and the inner diameter of the third gasket is the same as the outer diameter of the first convex strip 3; the gap between the first flange 1 and the second flange 2 can be filled through the third gasket, so that the sealing effect can be further improved; the third gasket is of a flat structure, namely the cross section of the third gasket is rectangular, so that a gap between the first flange 1 and the second flange 2 can be effectively filled; the first gasket 5, the second gasket 6 and the third gasket are all made of polytetrafluoroethylene; the polytetrafluoroethylene material has long service life and corrosion resistance;
The utility model has the advantages that:
As shown in fig. 1 to 2, the first rib 4 can be inserted into the inner periphery of the first rib 3; forming primary sealing, and then forming secondary sealing through the sealing action of the first gasket 5 and the second gasket 6 respectively; the tightness of flange connection can be greatly improved through multiple sealing; and the periphery of the second convex strip 4 can be embedded into the inner periphery of the first convex strip 3, so that the connection precision can be improved.
although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a flange, includes first flange and second flange, the second flange is located the top of first flange, first flange with the edge of second flange meets its characterized in that through the bolt:
An annular first raised line is arranged on the flange surface of the first flange, and the inner diameter of the first raised line is larger than the inner diameter of the pipeline of the first flange; an annular groove is formed in the upper surface of the first raised line, an annular first gasket is arranged in the groove, and the thickness of the first gasket is larger than the depth of the groove;
An annular second raised line is arranged on the flange surface of the second flange, and the inner diameter of the second raised line is equal to the inner diameter of the pipeline of the second flange; an annular groove is formed in the upper surface of the second raised line, an annular second gasket is arranged in the groove, and the thickness of the second gasket is larger than the depth of the groove; and the periphery of the second convex strip can be embedded into the inner periphery of the first convex strip.
2. A flange according to claim 1, wherein: the cross sections of the grooves of the first convex strip and the second convex strip are semicircular; the first gasket and the second gasket are both circular in cross section.
3. A flange according to claim 2, wherein: the periphery cover of first sand grip is equipped with the third gasket, the internal diameter of third gasket with the external diameter of first sand grip is the same.
4. A flange according to claim 3, wherein: the third gasket is of a flat structure, namely the cross section of the third gasket is rectangular.
5. A flange according to claim 4, wherein: the first gasket, the second gasket and the third gasket are all made of polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920154766.3U CN209762501U (en) | 2019-01-29 | 2019-01-29 | flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920154766.3U CN209762501U (en) | 2019-01-29 | 2019-01-29 | flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209762501U true CN209762501U (en) | 2019-12-10 |
Family
ID=68750717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920154766.3U Active CN209762501U (en) | 2019-01-29 | 2019-01-29 | flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209762501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464751A (en) * | 2021-06-16 | 2021-10-01 | 中船动力研究院有限公司 | High-pressure oil pipe and high-pressure oil pipe assembling method |
-
2019
- 2019-01-29 CN CN201920154766.3U patent/CN209762501U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464751A (en) * | 2021-06-16 | 2021-10-01 | 中船动力研究院有限公司 | High-pressure oil pipe and high-pressure oil pipe assembling method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |