CN2618026Y - Sleeved pipe telescoping devices - Google Patents
Sleeved pipe telescoping devices Download PDFInfo
- Publication number
- CN2618026Y CN2618026Y CN 03250819 CN03250819U CN2618026Y CN 2618026 Y CN2618026 Y CN 2618026Y CN 03250819 CN03250819 CN 03250819 CN 03250819 U CN03250819 U CN 03250819U CN 2618026 Y CN2618026 Y CN 2618026Y
- Authority
- CN
- China
- Prior art keywords
- flange
- pipe
- casing
- sleeve
- sealing ring
- 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 relates to an improvement of pipe expansion pieces, in particular to a double-pipe pipe expansion piece, which comprises a casing with a connective flange; wherein a sealing ring is assembled in the casing; the casing of the flange is arranged at the terminal of sealing ring; the flange is arranged on the outer wall of the other side of the casing of the flange; the inner diameter of the sleeve with the flange cooperates with the inserting movement of the casing of the flange; the contractive-neck hole of the sleeve cooperates with the outer radial movement of the flexible pipe, and a sealing ring is arranged between the sleeve and the inserting terminal of the casing; the flange on one side of the casing is connected to the flange of the sleeve via a bolt and presses the sealing ring; the sealing ring cooperates with the inner wall of the sleeve and the outer diameter of the flexible pipe; a flange is arranged at the projecting terminal of the flexible pipe; a baffle ring is arranged on the outer diameter of the inner terminal of the flexible pipe. The utility model has the advantages of reasonable structure and reliable performances, convenient and fast connection for pipes, and auto-compensation for changes of pipes caused by heat expansion and cold contraction, which prevents pipe connectors from water leakage. Besides, the utility model has other advantages such as convenience for assembly and maintenance, safety and reliability for use, long service life, low manufacturing cost and wide applicable range.
Description
Technical field
The utility model belongs to the improvement of pipeline extension device, particularly the bushing type pipeline extension device.
Background technique
At northern China BUILDINGS IN COLD AREAS thing heating pipe network, in the heating season heating, it cyclostrophic is warm to stop warming up, because the hot duct temperature variation is big, makes pipeline be subjected to thermal stretching, meets cold contraction.Damage valve and joint in order to prevent that heat supply pipeline from expanding with heat and contract with cold, slip joint or pipe laying expansion bend must be set on pipeline.Slip joint is set on pipeline, and floor space is big, and it is many to consume tubing, the cost height of tubing.Pipe laying expansion bend on pipeline has a kind of corrugated conduit expansion bend, and the bellows of thin walled structures is being set on expansion bend, is made of stainless steel.Its technical requirements more complicated is also installed corresponding support, and its extending amount is smaller, cost height, careless slightly easy damage in construction.
Summary of the invention
The purpose of this utility model is to provide a kind of bushing type pipeline extension device, and it is simple and reasonable, and extending amount is big, seals reliably non-leakagely, and cost is low, and long service life is easy to promote.
The purpose of this utility model is achieved in that a kind of bushing type pipeline extension device, comprise in the sleeve pipe that has adpting flange seal ring is installed, the end is provided with the sleeve pipe of flange, affixed flange on the outer wall of its opposite side, the inserting end that has its internal diameter of cutting ferrule of flange and a sleeve pipe movingly, the necking down hole of cutting ferrule and the external diameter of telescopic pipe are movingly, and in cutting ferrule and between the sleeve pipe inserting end, seal ring is installed, the flange of sleeve pipe one side and the flange of cutting ferrule link together by bolt, seal ring is compressed, seal ring matches with the inwall of cutting ferrule and the external diameter of telescopic pipe, the external part of telescopic pipe is provided with flange, affixed baffle ring on the external diameter of telescopic pipe inner end.
The utility model is installed on pipeline, when using the utility model to connect two pipes, the flange of cannula tip is connected with the flange of a pipe end, the flange of telescopic pipe external part is connected with the flange of another root pipe end.The utility model expands with heat and contract with cold to pipeline and has the function of automatic compensation, and the telescopic pipe extending amount is big.Because sleeve pipe and cutting ferrule link together by adpting flange mutually, and the seal ring of installing in it is compressed, and the outer wall of seal ring and telescopic pipe is tightly connected.When pipeline expanded with heat and contract with cold, telescopic pipe carried out flexible compensation under the sealing of seal ring, and sealing reliably can seepage.And when ring wear, aging after, it is convenient to change.The utility model is rational in infrastructure, reliable performance, and connecting tube is convenient and swift, can compensate the variation that pipeline expands with heat and contract with cold automatically, guarantees that the pipe joint place does not seep water and leaks under pressure effect repeatedly.Installation and maintenance are convenient, and are safe and reliable, sturdy and durable, long service life, low cost of manufacture, applied range.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, a kind of bushing type pipeline extension device, comprise in the sleeve pipe that has adpting flange seal ring is installed, the end is provided with the sleeve pipe 1 of flange, affixed flange on the outer wall of its opposite side, the inserting end that has cutting ferrule 3 its internal diameters of flange and a sleeve pipe 1 movingly, the necking down hole of cutting ferrule 3 and the external diameter of telescopic pipe 5 are movingly, and in cutting ferrule 3 and between sleeve pipe 1 inserting end, seal ring 4 is installed, the flange of sleeve pipe 1 one sides and the flange of cutting ferrule 3 link together by bolt, and seal ring 4 is compressed.Seal ring 4 usefulness are heat-resisting, ageing-resistant rubber is made.For≤95 ℃ hot water pipeline, seal ring 4 usefulness butyl rubbers constitute; For≤120 ℃ superheated waters or low pressure steam pipeline, seal ring 4 usefulness butyl rubbers constitute; For≤300 ℃ superheated waters or superheat steam pipeline, seal ring 4 usefulness silicone rubber constitute; For being used for oil transport pipeline or oil-containing fluid line, constitute with nitrile rubber.Seal ring 4 matches with the inwall of cutting ferrule 3 and the external diameter of telescopic pipe 5, and the external part of telescopic pipe 5 is provided with flange, affixed baffle ring 2 on the external diameter of telescopic pipe 5 inner ends.Baffle ring 2 plays telescopic pipe 5 spacing, prevents that the outside displacement of telescopic pipe 5 is excessive, and is pulled.Telescopic pipe 5 is the vitals of the utility model product, is sealed and matched with seal ring 4, could guarantee the non-leakage water of pipe joint.Require telescopic pipe 5 surperficial non-corrosives, be not easy to be corroded, keep smooth surface, could guarantee seal ring 4 in that slip remains close combination can percolating water.On the surface of telescopic pipe 5, nickel-phosphorus chemical plating is being set.The surface that nickel-phosphorus chemical plating makes telescopic pipe 5 is the hardness height not only, and is corrosion-resistant.Can anti-dilute sulfuric acid, the corrosion of watery hydrochloric acid, keep telescopic pipe 5 smooth surfaces.The cutting ferrule 3 that has adpting flange can constitute with spheroidal graphite cast iron.Under the prerequisite that does not weaken its intensity, can simplify manufacturing procedure like this, reduce cost, save steel.At the external cylindrical surface of cutting ferrule 3 and the uniform stiffening rib 6 that is being provided with in joint of flange,, improve working life to increase the intensity of cutting ferrule 3.
The utility model can be applied in heating system, the domestic hot-water supply system, and the farmland spray irrigation system, feedwater, drainage system also can be applied in the petroleum pipeline system, steam vapour system and high pressure steam system.
Claims (3)
1. bushing type pipeline extension device, comprise in the sleeve pipe that has adpting flange seal ring is installed, it is characterized in that: the end is provided with the sleeve pipe (1) of flange, affixed flange on the outer wall of its opposite side, the inserting end that has its internal diameter of cutting ferrule (3) of flange and a sleeve pipe (1) movingly, the external diameter of the necking down hole of cutting ferrule (3) and telescopic pipe (5) movingly, and in cutting ferrule (3) and between sleeve pipe (1) inserting end, seal ring (4) is installed, the flange of the flange of sleeve pipe (1) one side and cutting ferrule (3) links together by bolt, seal ring (4) is compressed, seal ring (4) matches with the inwall of cutting ferrule (3) and the external diameter of telescopic pipe (5), the external part of telescopic pipe (5) is provided with flange, affixed baffle ring (2) on the external diameter of telescopic pipe (5) inner end.
2. bushing type pipeline extension device according to claim 1 is characterized in that: on the surface of telescopic pipe (5) nickel-phosphorus chemical plating is being set.
3. bushing type pipeline extension device according to claim 1 is characterized in that: at the external cylindrical surface of cutting ferrule (3) and the uniform stiffening rib (6) that is being provided with in joint of flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250819 CN2618026Y (en) | 2003-05-07 | 2003-05-07 | Sleeved pipe telescoping devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250819 CN2618026Y (en) | 2003-05-07 | 2003-05-07 | Sleeved pipe telescoping devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2618026Y true CN2618026Y (en) | 2004-05-26 |
Family
ID=34252907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03250819 Expired - Fee Related CN2618026Y (en) | 2003-05-07 | 2003-05-07 | Sleeved pipe telescoping devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2618026Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162560A (en) * | 2011-04-20 | 2011-08-24 | 刘毅非 | Pipeline extension device |
| CN102797923A (en) * | 2012-08-29 | 2012-11-28 | 北京韩建河山管业股份有限公司 | Steel-structured replacement pipe with sliding joint |
| CN104763855A (en) * | 2015-02-28 | 2015-07-08 | 美钻能源科技(上海)有限公司 | Adjustable pipe connection device |
| CN108721998A (en) * | 2018-08-08 | 2018-11-02 | 合肥精都机电仪表有限公司 | A kind of Quick-opening blind flange filter easy to loading and unloading |
| CN112728263A (en) * | 2019-10-28 | 2021-04-30 | 湖南诚路管业科技有限公司 | Telescopic pipeline connector |
-
2003
- 2003-05-07 CN CN 03250819 patent/CN2618026Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162560A (en) * | 2011-04-20 | 2011-08-24 | 刘毅非 | Pipeline extension device |
| CN102797923A (en) * | 2012-08-29 | 2012-11-28 | 北京韩建河山管业股份有限公司 | Steel-structured replacement pipe with sliding joint |
| CN104763855A (en) * | 2015-02-28 | 2015-07-08 | 美钻能源科技(上海)有限公司 | Adjustable pipe connection device |
| CN108721998A (en) * | 2018-08-08 | 2018-11-02 | 合肥精都机电仪表有限公司 | A kind of Quick-opening blind flange filter easy to loading and unloading |
| CN112728263A (en) * | 2019-10-28 | 2021-04-30 | 湖南诚路管业科技有限公司 | Telescopic pipeline connector |
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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 |