CN2284898Y - Limit expansion joint - Google Patents
Limit expansion joint Download PDFInfo
- Publication number
- CN2284898Y CN2284898Y CN 97216266 CN97216266U CN2284898Y CN 2284898 Y CN2284898 Y CN 2284898Y CN 97216266 CN97216266 CN 97216266 CN 97216266 U CN97216266 U CN 97216266U CN 2284898 Y CN2284898 Y CN 2284898Y
- Authority
- CN
- China
- Prior art keywords
- gland
- connecting body
- expansion joint
- spacing
- 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.)
- Ceased
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Abstract
The utility model relates to a pipe joint for overcoming the phenomenon of pulling-out, particularly a limit expansion joint, composed of a gland, a sealing ring, gland nuts, a short pipe, a stop flange or a stop block, stay bolts, stop nuts and a connecting body. The connecting body and the short pipe are concentric. The stop flange is fixedly arranged on the short pipe. The utility model is characterized in that one end of the short pipe is sheathed with the sealing ring and the gland for pressing the sealing ring. The gland, the stop flange and the connecting body are provided with corresponding screw holes divided equally according to the circumference which are penetrated with stay bolts. The gland is pressed by the gland nuts, and the connecting body is locked by the stop nuts. The utility model is used for pipe joint.
Description
The utility model relates to pipe joint, refers in particular to a kind of pipe expansion joint.Be applicable to pipelines such as carrying water, oil, gas and particle powdery medium.
Various pipes is because variation of temperature, cause and expand with heat and contract with cold, thereby produce huge internal stress, cause pipeline burst, dielectric leakage, not only influenced proper functioning, and the energy runs off environmental pollution, even threat personal safety, though and existing expansion joint can compensate the displacement of pipeline, eliminate internal stress, because structurally there is defective in existing expansion joint, for example there is not limit stoper, therefore, pipe vibration or be subjected to axial force and cause expansion joint to skew on one side, even pipe pulls and produces dielectric leakage.
The purpose of this utility model provides and a kind ofly can not only compensate the displacement that pipeline produces because of expanding with heat and contract with cold, and has certain axial limiting ability, can prevent the spacing expansion joint that pipe pulls.
The purpose of this utility model is achieved in that spacing expansion joint, it is made up of gland, seal ring, gland nut, short tube, spacing flange or limiting stopper, stay bolt, stop nut and connecting body, connecting body and short tube are concentric, spacing flange is fixedly arranged on the short tube, it is characterized in that: the gland that is arranged with seal ring and pressured seal ring in short tube one end; Be provided with by the corresponding screw of circumference five equilibrium and penetrate stay bolt in gland, spacing flange and connecting body, mat gland nut and stop nut compress gland respectively and pin connecting body.
Above-mentioned design, be on short tube, to set firmly spacing flange or limiting stopper, make connected body be nested into coupled pipe fitting, push down seal ring with gland, make its sealing, and pass through long threaded rod, the place locks with stop nut in the maximum amount of stretching, make short tube can not exceed the maximum amount of stretching, so just realized not only having kept original pine cover expansion joint good seal performance, can compensate pipeline causes displacement because of expanding with heat and contract with cold advantage, main is to have reached to prevent effectively that pipe from pulling, and guarantees the effect of pipe safety operation.
Below by drawings and Examples the utility model is described further again.
Fig. 1 the utility model embodiment one main schematic representation of looking;
Fig. 2 the utility model embodiment one cross-sectional schematic;
Fig. 3 the utility model embodiment looks schematic representation in one left side;
Fig. 4 the utility model embodiment two main schematic representation of looking;
Fig. 5 the utility model embodiment two cross-sectional schematic;
Fig. 6 the utility model embodiment looks schematic representation in two left sides;
The spacing briquette structure schematic representation of Fig. 7-8 the utility model.
Shown in Fig. 1～3: the utility model is made up of gland 1, seal ring 2, back jack panel 4, short tube 5, spacing flange 6, stay bolt 7, stop nut 8 and connecting body, and connecting body and short tube 5 are that spacing flange 6 is fixedly arranged on the short tube 5 with one heart; Be arranged with the gland 1 of seal ring 2 and pressured seal ring 2 in short tube 5 one ends: be provided with by the corresponding screw of circumference five equilibrium and penetrate stay bolt 7 in gland 1, spacing flange 6 and connecting body, nationality gland nut 4 and stop nut 8 compress gland 1 respectively and pin connecting body.Wherein, connecting body by casing pressure body 3 be located at another short tube 5 ' and be located at this short tube 5 ' on spacing flange 6 ', gland 1 ', seal ring 2 ' form: this gland 1 ', seal ring 2 ' be the subtend setting with gland 1, seal ring 2 on the short tube 5, and casing pressure body 3 is therebetween.Wherein, in two glands 1,1 ' go up and the screw of the stay bolt 7 on it is provided with screw at interval and wears bolt 9, and compress with gland nut 10 by the circumference five equilibrium.Wherein, stay bolt 7, bolt 9 and gland nut 4 thereof are each four groups.Embodiment one can be described as the spacing expansion joint of gland type (SSJB-3 type).Its Placement is that two ends all are welding.
Shown in Fig. 4～6: embodiment two also is made up of gland 16, seal ring 17, gland nut 15, short tube 14, spacing flange 13, stay bolt 12, stop nut 11 and connecting body; Wherein, connecting body is formed for the casing pressure body 21 of one by flange 18 and with flange 18.Wherein, on flange 18, the gland 16 by the circumference five equilibrium and the screw of the stay bolt 12 on it be provided with screw at interval and wear bolt 19, and compress with gland nut 20.Wherein, stay bolt 12, bolt 19 and gland nut 15,20 thereof are each three groups.Embodiment two can be described as the spacing expansion joint of flange-type (VSSJA-1 type).Its Placement is end welding, and end connects with flange in addition.
As Fig. 7, shown in 8: set firmly the position of spacing flange on short tube, the limiting stopper 22 that has screw is established in weldering, and its effect is fully identical with spacing flange, different flanges be an integral body, and limiting stopper 22 is only just established in establishing the screw place, is discontinuous.
The utility model can use spheroidal graphite cast iron, carbon steel, alloyed steel, stainless steel and other metal materials to make, material such as seal ring nitrile butadiene rubber, fluorine rubber according to different use occasions.
Claims (7)
1, spacing expansion joint, it is made up of gland, seal ring, gland nut, short tube, spacing flange or limiting stopper, stay bolt, stop nut and connecting body, connecting body and short tube are concentric, spacing flange is fixedly arranged on the short tube, it is characterized in that: the gland that is arranged with seal ring and pressured seal ring in short tube one end; Be provided with by the corresponding screw of circumference five equilibrium and penetrate stay bolt in gland, spacing flange and connecting body, mat gland nut and stop nut compress gland respectively and pin connecting body.
2, spacing expansion joint as claimed in claim 1 is characterized in that: wherein, connecting body by the casing pressure body be located at another short tube and be located at spacing flange, gland, seal ring ' form on this short tube; Gland on this gland, seal ring and the short tube, seal ring are the subtend setting, and the casing pressure position therebetween.
3, spacing expansion joint as claimed in claim 2 is characterized in that: wherein, on two glands by the circumference five equilibrium and the screw of the stay bolt on it be provided with screw at interval and wear bolt, and compress with gland nut.
4, spacing expansion joint as claimed in claim 3 is characterized in that: wherein, stay bolt, bolt and gland nut thereof are each four groups.
5, spacing expansion joint as claimed in claim 1 is characterized in that: wherein, connecting body by flange and with flange be that the casing pressure body of one is formed.
6, spacing expansion joint as claimed in claim 5 is characterized in that: wherein, on flange, the gland by the circumference five equilibrium and the screw of the stay bolt on it be provided with screw at interval and wear bolt, and compress with gland nut.
7, spacing expansion joint as claimed in claim 6 is characterized in that: wherein, stay bolt, bolt and gland nut thereof are each three groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97216266 CN2284898Y (en) | 1997-06-02 | 1997-06-02 | Limit expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97216266 CN2284898Y (en) | 1997-06-02 | 1997-06-02 | Limit expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2284898Y true CN2284898Y (en) | 1998-06-24 |
Family
ID=33933202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97216266 Ceased CN2284898Y (en) | 1997-06-02 | 1997-06-02 | Limit expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2284898Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032406A (en) * | 2010-12-14 | 2011-04-27 | 哈尔滨工业大学 | Quake-proof joint of buried pipe network |
| CN102979982A (en) * | 2012-12-13 | 2013-03-20 | 无锡压缩机股份有限公司 | Compensation pipe structure for heat pipeline |
| CN103867825A (en) * | 2014-04-03 | 2014-06-18 | 核工业理化工程研究院 | Vacuum pipeline length compensation device |
| CN108087401A (en) * | 2017-11-29 | 2018-05-29 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of resistance to laminate of deep-sea platform and frame jointing |
| CN108731757A (en) * | 2018-08-08 | 2018-11-02 | 合肥精都机电仪表有限公司 | A kind of scraper type flowmeter being easily installed |
| CN109340488A (en) * | 2018-11-21 | 2019-02-15 | 泰州华然不锈钢制品有限公司 | A kind of steel flange limit telescopic connector |
| CN113606417A (en) * | 2021-08-04 | 2021-11-05 | 远大阀门集团有限公司 | Universal screw limiting type pipeline compensation joint with indicating mechanism |
-
1997
- 1997-06-02 CN CN 97216266 patent/CN2284898Y/en not_active Ceased
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032406A (en) * | 2010-12-14 | 2011-04-27 | 哈尔滨工业大学 | Quake-proof joint of buried pipe network |
| CN102979982A (en) * | 2012-12-13 | 2013-03-20 | 无锡压缩机股份有限公司 | Compensation pipe structure for heat pipeline |
| CN102979982B (en) * | 2012-12-13 | 2014-12-10 | 无锡压缩机股份有限公司 | Compensation pipe structure for heat pipeline |
| CN103867825A (en) * | 2014-04-03 | 2014-06-18 | 核工业理化工程研究院 | Vacuum pipeline length compensation device |
| CN108087401A (en) * | 2017-11-29 | 2018-05-29 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of resistance to laminate of deep-sea platform and frame jointing |
| CN108731757A (en) * | 2018-08-08 | 2018-11-02 | 合肥精都机电仪表有限公司 | A kind of scraper type flowmeter being easily installed |
| CN109340488A (en) * | 2018-11-21 | 2019-02-15 | 泰州华然不锈钢制品有限公司 | A kind of steel flange limit telescopic connector |
| CN113606417A (en) * | 2021-08-04 | 2021-11-05 | 远大阀门集团有限公司 | Universal screw limiting type pipeline compensation joint with indicating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JINYANG PIPELINE ACCESSARY CO., LTD., XISHAN CITY Free format text: FORMER NAME OR ADDRESS: PIPELINE ACCESSARY PLANT, XISHAN CITY |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Jinyang Pipeline Accessary Co., Ltd., Xishan City Patentee before: Xishan City Pipe Accessories Plant |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: JINYANG PIPELINE ACCESSARY CO., LTD., XISHAN CITY TO: NONE WUXI CITY GOLDEN GOAT PIPELINE ATTACHMENT CO., LTD. |
|
| CU01 | Correction of utility model patent |
Correction item: Patentee Correct: Wuxi Jinyang Piping Fitting Co., Ltd. False: Jinyang Pipeline Accessary Co., Ltd., Xishan City Number: 31 Page: The title page Volume: 19 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Patentee Correct: Wuxi Jinyang Piping Fitting Co., Ltd. False: Jinyang Pipeline Accessary Co., Ltd., Xishan City Number: 31 Page: 303 Volume: 19 |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENTEE; FROM: JINYANG PIPELINE ACCESSARY CO., LTD., XISHAN CITY TO: NONE WUXI CITY GOLDEN GOAT PIPELINE ATTACHMENT CO., LTD. |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Patentee Correct: Xishan City Pipe Accessories Plant False: Wuxi Jinyang Piping Fitting Co., Ltd. Number: 15 Page: 407 Volume: 20 |
|
| ERR | Gazette correction |
Free format text: CORRECT: ORIGINAL PATENTEE; FROM: JINYANG PIPELINE ACCESSARY CO., LTD., XISHAN CITY TO: PIPELINE ACCESSARY PLANT, XISHAN CITY |
|
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20050512 Decision number of declaring invalidation: 7131 |