CN2132905Y - Flared welding-free flanged connecting structure - Google Patents
Flared welding-free flanged connecting structure Download PDFInfo
- Publication number
- CN2132905Y CN2132905Y CN 92215859 CN92215859U CN2132905Y CN 2132905 Y CN2132905 Y CN 2132905Y CN 92215859 CN92215859 CN 92215859 CN 92215859 U CN92215859 U CN 92215859U CN 2132905 Y CN2132905 Y CN 2132905Y
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- lining
- cone
- counterbore
- flange
- 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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- Revetment (AREA)
Abstract
The utility model relates to a flared welding-free flanged connecting structure, composed of a flange, a lining sleeve, a sealing conical body, a positioning ring, an elastic sealing ring, a steel pipe, etc.; the connecting part of the steel pipe is in flaring form; the utility model can be used for the connection of a flaring steel pipe or an inner wall plastic coated flaring steel pipe. The utility model has the advantages of welding relieving, high pressure bearing, easy installation, and rapidity; besides, the corrosion resistance of the flange connecting part of the inner wall plastic coated steel pipe can be protected.
Description
The utility model relates to flange, is a kind of piping flange.
The existing flange that is used for steel pipe mostly adopts the mode of welding to be connected with pipeline, causes serious accident as carrying out pipeline construction regular meeting at inflammable, explosive environments.Special popularization owing to the application of inwall plastic-coated steel, the flange welding can damage steel pipe inwall coating layer, destroys its original corrosion resistance.More existing screwed flanges; though crimping lap joint flange, expanded joint formula flange etc. are connected with pipeline without welding manner; but the bearing capacity that these flanges connect is relatively poor; and all can not protect the end face of inwall plastic-coated steel; and the inwall plastic-coated steel construct at the scene the cutting ear end face often do not have the plastic-coated protective layer, this just can not protect the corrosion resistance of flange connections.
The purpose of this utility model is in order to provide a kind of flared type to exempt to weld flanged connecting structure.But but be applicable to the connection of enlarging steel pipe or inwall plastic-coated enlarging steel pipe.It removes welding from, can bear high pressure, can protect the corrosion resistance of inwall plastic-coated steel flange connections.
For achieving the above object, the flared type that the utility model provides exempts to weld flanged connecting structure structurally to the left and right symmetry of junction plane, the branch of no male and female.It contains following structural element and other part: the flanged ends of steel pipe is the enlarging shape.In the flared section of both sides steel pipe, all be embedded with seal cones.The male cone (strobilus masculinus) of seal cones is close on the flared section inner conical surface of steel pipe, and its endoporus is slightly less than pipe diameter, and the outside has overhanging garden shell of column formation convex shoulder to cooperate with steel tube inner hole the cone microcephaly, and inboard have positioning boss at the cone major part, and counterbore is arranged on junction plane.The positioning ring cooperation of rectangular cross-section is embedded in the counterbore of positioning boss on junction plane of both sides sealing cone, and the both ends of the surface of positioning ring are clamped by the counterbore bottom surface, and positioning ring plays location and seal action simultaneously.In the interior garden of positioning ring the elastic seal ring in U-shaped cross section is housed, is also clamped by the bottom surface of the positioning boss of both sides sealing cone at junction plane place counterbore, the pipe internal pressure heals its sealing effect of height better.The steel pipe flared section place outside is with the endless tube shape lining of band flared section, and the enlarging angle of lining is consistent with the enlarging angle of steel pipe and be pressed on together.Flange is enclosed within on the positioning boss of lining and seal cones, and the endoporus of flange is
Shape, the cone angle of its conical surface part is consistent with the enlarging angle of lining and be pressed on the lining, and is porose fastening with the bolt connection on the flange.Such flanged connecting structure has been removed welding fully from, certainly also can not destroy the coating layer of inwall plastic-coated steel, having only steel pipe inwall, seal cones, positioning ring and elastic seal ring in this flanged connecting structure is working medium in the contact tube, above-mentioned member need be covered with anticorrosion layer such as plastic-coated etc. with corrosion resistant material or on the surface if medium has corrosivity, as for lining, flange and pipeline connect end face and then isolate with the interior working medium of pipe fully, not corroded by it.
Therefore the utility model has the advantages that: but be used for can removing from when but enlarging steel pipe or inwall plastic-coated enlarging steel pipe connect welding and seam inspection etc., be fit to pipeline construction inflammable, explosive environments.Can bear high pressure.Easy for installation, quick.Can not damage the internal plastic coating layer of inwall plastic-coated steel during installation, and can effectively protect the end face of its no coating layer, thereby protect the corrosion resistance of flange connections.
The utility model is described in further detail below in conjunction with the accompanying drawing illustrated embodiment.
Fig. 1 is a sectional view of the present utility model.
See that by figure the utility model is structurally to the junction plane symmetry.Steel pipe 1 has 37 ° of enlargings at connecting end.The male cone (strobilus masculinus) of seal cones 2 is close on the steel pipe 1 flared section inner conical surface, and its endoporus is slightly less than steel pipe 1 endoporus, and cone microcephaly has overhanging garden shell of column 8 to cooperate with steel pipe 1 endoporus, and the cone major part has positioning boss 9, and counterbore is arranged on junction plane.In the counterbore that the positioning ring 3 of rectangular cross-section cooperates on positioning boss 9 junction planes that are embedded in both sides sealing cone 2, the both ends of the surface of positioning ring 3 are clamped by the counterbore bottom surface.In the interior garden of positioning ring 3 elastic seal ring 4 in U-shaped cross section is housed, is also clamped by the bottom surface of the positioning boss 9 of both sides sealing cone 2 at junction plane place counterbore.The outside, steel pipe 1 flared section place is with the endless tube shape lining 5 of band flared section, and the enlarging angle of lining 5 is consistent with the enlarging angle of steel pipe 1, and is pressed on together.The endoporus of flange 6 is
Shape is enclosed within on the positioning boss 9 of lining 5 and seal cones 2, and the cone angle of its conical surface part is consistent with the enlarging angle of lining 5, and is pressed on the lining, 7 connections, fastening of flange 6 usefulness bolts.
Claims (1)
1, a kind of flared type exempts to weld flanged connecting structure, and structurally to the junction plane symmetry, the connecting end of steel pipe 1 is the enlarging shape, contains with bolt 7 flange connecting 6, it is characterized in that:
(1) male cone (strobilus masculinus) of seal cones 2 is close on the steel pipe 1 flared section inner conical surface, and its endoporus is less than steel pipe 1 internal diameter, and cone microcephaly has overhanging garden shell of column 8 to cooperate with steel pipe 1 endoporus, and the cone major part has positioning boss 9, and counterbore is arranged on junction plane;
(2) positioning ring 3 of rectangular cross-section cooperates and is embedded in the deciding in the counterbore on boss 9 junction planes of both sides sealing cone 2, and the both ends of the surface of positioning ring 3 are clamped by the counterbore bottom surface;
(3) elastic seal ring 4 of ∪ tee section is housed in the interior garden of positioning ring 3, is also clamped by the bottom surface of the positioning boss 9 of both sides sealing cone 2 at junction plane place counterbore;
(4) outside, steel pipe 1 flared section place is with the endless tube shape lining 5 of band flared section, and the enlarging angle of lining 5 is consistent with the enlarging angle of steel pipe, and is pressed on together;
(5) endoporus of flange 6 is
Shape is enclosed within on the positioning boss 9 of lining 5 and seal cones 2, and the cone angle of its conical surface part is consistent with the enlarging angle of lining 5, and is pressed on the lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92215859 CN2132905Y (en) | 1992-07-14 | 1992-07-14 | Flared welding-free flanged connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92215859 CN2132905Y (en) | 1992-07-14 | 1992-07-14 | Flared welding-free flanged connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2132905Y true CN2132905Y (en) | 1993-05-12 |
Family
ID=33764241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92215859 Expired - Fee Related CN2132905Y (en) | 1992-07-14 | 1992-07-14 | Flared welding-free flanged connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2132905Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410413A (en) * | 2011-08-23 | 2012-04-11 | 重庆顾地塑胶电器有限公司 | Steel-plastic composite tube connecting structure based on orifice flangings |
| CN102606823A (en) * | 2012-03-16 | 2012-07-25 | 苏州宝骅机械技术有限公司 | Constant-stress constant-displacement-line sealing component |
| CN102691837A (en) * | 2012-05-30 | 2012-09-26 | 荣京柯 | Pipe connecting device |
| CN103979323A (en) * | 2014-05-26 | 2014-08-13 | 南通澳润建材科技有限公司 | Rotary connection device of horizontal pipe discharging hole of ship unloader |
| CN104896224A (en) * | 2015-06-15 | 2015-09-09 | 孙家成 | Joint-coating and welding-free pipe connecting device and application method |
| CN105179844A (en) * | 2015-08-31 | 2015-12-23 | 中国重汽集团成都王牌商用车有限公司 | Exhaust pipe connection structure |
| CN109282097A (en) * | 2018-08-17 | 2019-01-29 | 弗通流体科技（上海）有限公司 | It is flared flange pipe connection system |
-
1992
- 1992-07-14 CN CN 92215859 patent/CN2132905Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410413A (en) * | 2011-08-23 | 2012-04-11 | 重庆顾地塑胶电器有限公司 | Steel-plastic composite tube connecting structure based on orifice flangings |
| CN102606823A (en) * | 2012-03-16 | 2012-07-25 | 苏州宝骅机械技术有限公司 | Constant-stress constant-displacement-line sealing component |
| CN102691837A (en) * | 2012-05-30 | 2012-09-26 | 荣京柯 | Pipe connecting device |
| CN102691837B (en) * | 2012-05-30 | 2016-06-29 | 荣京柯 | A kind of assembling pipe joint |
| CN103979323A (en) * | 2014-05-26 | 2014-08-13 | 南通澳润建材科技有限公司 | Rotary connection device of horizontal pipe discharging hole of ship unloader |
| CN104896224A (en) * | 2015-06-15 | 2015-09-09 | 孙家成 | Joint-coating and welding-free pipe connecting device and application method |
| CN105179844A (en) * | 2015-08-31 | 2015-12-23 | 中国重汽集团成都王牌商用车有限公司 | Exhaust pipe connection structure |
| CN109282097A (en) * | 2018-08-17 | 2019-01-29 | 弗通流体科技（上海）有限公司 | It is flared flange pipe connection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |