CN1212484C - Pipeline adjustable connector with telescopic device - Google Patents
Pipeline adjustable connector with telescopic device Download PDFInfo
- Publication number
- CN1212484C CN1212484C CN 03110063 CN03110063A CN1212484C CN 1212484 C CN1212484 C CN 1212484C CN 03110063 CN03110063 CN 03110063 CN 03110063 A CN03110063 A CN 03110063A CN 1212484 C CN1212484 C CN 1212484C
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- CN
- China
- Prior art keywords
- connecting tube
- connecting pipe
- cutting ferrule
- present
- pipeline
- Prior art date
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- Expired - Fee Related
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Abstract
The present invention relates to a movable pipeline joint with a telescopic device for heating pipelines, which belongs to the improvement of a pipeline telescopic device and a movable joint. The present invention is composed of a connecting pipe, a cutting sleeve and a telescopic connecting pipe, wherein one end of the connecting pipe is provided with internal screw threads, and the other end is provided with external screw threads; screw threads of an inner hole of the cutting sleeve are matched with the external screw threads of the connecting pipe; a necking hole of the other end of the cutting sleeve is matched with the telescopic connecting pipe; a sealing ring arranged in the cutting sleeve is matched with the inner wall of the cutting sleeve and the outer diameter of the telescopic connecting pipe; a baffle ring is arranged on the inner end of the telescopic connecting pipe, and connecting screw threads are arranged on the outer circumference surface of the outer end of the telescopic connecting pipe. When the present invention is used, pipeline joints can be conveniently connected and sealed, and the present invention has the compensatory function on heat expansion and cold contraction of pipelines, so the present invention solves the problem of water leakage of a pipeline joint caused by the heat expansion and the cold contraction of the pipelines. The present invention has the advantages of reasonable structure, convenient installation and maintenance, high safety and reliability and wide application range.
Description
Technical field
The invention belongs to the improvement of pipeline extension device and union, especially for the Pipe moveable joint head that has expansion bend on the heating pipe.
Background technique
Heating system in all kinds of buildings, ubiquitous is the problem of pipe coupling place percolating water.This mainly is that the handling characteristics of heating pipe causes, and the hot water temperature in the heating system is along with the variation of outside air temperature changes.The variation of heating water temperature causes the temperature variation of heating pipe, and the heating pipe variation of temperature is expanded with heat and contract with cold pipeline.This repeated stress continuously just causes the collapsing force to pipe coupling, impels pipe joint place percolating water under the effect of this pressure repeatedly.
At present, connection at heating pipe is extensive use of the FERRULETYPE union, the pipe end that joins at two pipes, a pipe end is installed with and has externally threaded pipe collar, cooperating the cutting ferrule that has internal thread on its shoulder block of pipe collar that another pipe end is installed, between two pipe collar end faces seal ring is installed, the internal thread of cutting ferrule matches with the outside thread of pipe collar.When tightening cutting ferrule, make two pipe collar end faces compress seal ring, pipe seal is connected.Because the expanding with heat and contract with cold of heat distribution pipeline, stress repeatedly perhaps pulls open cutting ferrule and leaks, and perhaps stretches repeatedly, compresses and make seal ring distortion infiltration.
Summary of the invention
The object of the present invention is to provide a kind of Pipe moveable joint head that has expansion bend, not only can make pipe coupling connect sealing easily, and expand with heat and contract with cold for pipeline and to have compensate function, can solve owing to the pipeline pipe joint that produces that expands with heat and contract with cold leaks seepage problem.
The object of the present invention is achieved like this: a kind of Pipe moveable joint head that has expansion bend, form by connecting tube, cutting ferrule and flexible connecting tube, one end of connecting tube has internal thread, its the other end has outside thread, the cutting ferrule inner hole thread matches with the outside thread of connecting tube, match with flexible connecting tube in the necking down hole of the cutting ferrule the other end, the seal ring of installing in cutting ferrule matches with cutting ferrule inwall and flexible connecting tube external diameter, the inner of flexible connecting tube is provided with baffle ring, and the outer peripheral surface of its outer end is provided with connecting thread.
When using the present invention to connect two pipes, connecting tube is installed in the end of a pipeline, the flexible connecting tube that will have cutting ferrule and seal ring is connected with two pass joints that another root pipeline is installed to the end, the continuous outside thread of taking over of the inner hole thread of cutting ferrule is connected, tighten cutting ferrule the termination of connecting tube and the necking down inwall of cutting ferrule are compressed seal ring, with pipe seal.The present invention has the union of pipeline connection and the function that pipeline expands with heat and contract with cold and compensates automatically.Connecting tube is convenient and swift, can also compensate the variation that pipeline expands with heat and contract with cold automatically, guarantees not seep water at pressure effect lower pipe connection place repeatedly, leaks, and also can not occur because the phenomenon that pipeline expands with heat and contract with cold joint is damaged.The present invention is simple and reasonable, and installation and maintenance are convenient, and are safe and reliable, applied range.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing, a kind of Pipe moveable joint head that has expansion bend, form by connecting tube 1, cutting ferrule 2 and flexible connecting tube 4, one end of connecting tube 1 has internal thread, its the other end has outside thread, and the outer peripheral surface that connecting tube 1 has internal thread one end is provided with ring stiffener 8 and uniform axial convex tendon 7.Cyclic reinforcing rib 8 can reinforced company be taken over 1 intensity, and uniform convex tendon 7 can make pipe wrench bite connecting tube 1 easily, and is non-slip.Perhaps on connecting tube 1 has the outer peripheral surface of internal thread one end, the polygon face is being set.Block with convenient wrench.Cutting ferrule 2 inner hole threads match with the outside thread of connecting tube 1, match with flexible connecting tube 4 in the necking down hole of cutting ferrule 2 the other ends, and the seal ring of installing in cutting ferrule 23 matches with cutting ferrule 2 inwalls and flexible connecting tube 4 external diameters.Ring stiffener 6 and uniform axial convex tendon 5 are being set on the outer peripheral surface of cutting ferrule 2, the polygon face perhaps is being set on the outer peripheral surface of cutting ferrule 2.Seal ring 3 usefulness are heat-resisting, ageing-resistant rubber is made, and for≤95 ℃ hot water pipeline, seal ring 3 usefulness neoprenes constitute; The superheated water or the low pressure steam pipeline of right≤120 ℃, seal ring 3 usefulness butyl rubbers constitute; For≤300 ℃ superheated waters or superheat steam pipeline, seal ring 3 usefulness silicone rubber constitute; Constitute with nitrile rubber for being used for oil transport pipeline or containing flow of oil.Connecting tube 1 and cutting ferrule 2 can be made with spheroidal graphite cast iron.The inner of flexible connecting tube 4 is provided with baffle ring 9, is provided with by connecting thread on the outer peripheral surface of its outer end.Flexible connecting tube 4 is the critical piece of product of the present invention, and is sealed and matched with seal ring 3 and could guarantees the non-leakage water of pipe joint.This just requires: can not get rusty in flexible connecting tube 4 surfaces, is not easy to be corroded, and keeps smooth surface, and the connecting tube 4 that could guarantee to stretch slides in seal ring 3 and remains that combine closely can percolating water.To flexible connecting tube 4 surface treatments, adopt different processing methods:, adopt nickel-phosphorus chemical plating to the environment of having relatively high expectations according to use condition; To requiring general environment Coating Steel Pipe, before zinc-plated, to carry out polishing treatment to guarantee the welded pipe smooth outer surface, to guarantee no longer seepage for welded pipe.Under some particular surroundings, also can consider to handle with surface treatments such as heat-resistant paints or with chrome-plated surface.Be used for the employing welded steel pipe that low-pressure fluid is carried for flexible connecting tube 4; Be used for high-pressure liquid and carry usefulness, adopt seamless steel pipe.The outer peripheral surface of flexible connecting tube 4 outer ends is provided with annular knurl 10, and annular knurl 10 can make pipe wrench block flexible connecting tube 4.
Product of the present invention uses extensively, not only can be used for heating system, and can be applied on feedwater, the drainage system, also can be used in domestic hot-water supply system, farmland spray irrigation system, petroleum pipeline system, steam vapour system, high pressure steam system etc.
Claims (5)
1. Pipe moveable joint head that has expansion bend, it is characterized in that: by connecting tube (1), cutting ferrule (2) and flexible connecting tube (4) are formed, one end of connecting tube (1) has internal thread, its the other end has outside thread, cutting ferrule (2) inner hole thread matches with the outside thread of connecting tube (1), match with flexible connecting tube (4) in the necking down hole of cutting ferrule (2) the other end, the seal ring of installing in cutting ferrule (2) (3) matches with cutting ferrule (2) inwall and flexible connecting tube (4) external diameter, the inner of flexible connecting tube (4) is provided with baffle ring (9), and the outer wall of its outer end is provided with connecting thread.
2. the Pipe moveable joint head that has expansion bend according to claim 1, it is characterized in that: the outer peripheral surface that connecting tube (1) has internal thread one end is provided with ring stiffener (8) and uniform axial convex tendon (7), perhaps on connecting tube (1) has the outer peripheral surface of internal thread one end the polygon face is being set.
3. the Pipe moveable joint head that has expansion bend according to claim 1 is characterized in that: ring stiffener (6) and uniform axial convex tendon (5) are being set on the outer peripheral surface of cutting ferrule (2), the polygon face perhaps is being set on the outer peripheral surface of cutting ferrule (2).
4. the Pipe moveable joint head that has expansion bend according to claim 1 is characterized in that: the flexible smooth surface of connecting tube (4) is provided with coating.
5. the Pipe moveable joint head that has expansion bend according to claim 1 is characterized in that: the outer peripheral surface of flexible connecting tube (4) outer end is provided with annular knurl (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03110063 CN1212484C (en) | 2003-04-17 | 2003-04-17 | Pipeline adjustable connector with telescopic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03110063 CN1212484C (en) | 2003-04-17 | 2003-04-17 | Pipeline adjustable connector with telescopic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1460807A CN1460807A (en) | 2003-12-10 |
| CN1212484C true CN1212484C (en) | 2005-07-27 |
Family
ID=29591016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03110063 Expired - Fee Related CN1212484C (en) | 2003-04-17 | 2003-04-17 | Pipeline adjustable connector with telescopic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1212484C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514937A (en) * | 2013-09-30 | 2015-04-15 | 武汉市无穷大能源科技有限公司 | Expansion joint of multi-way pipeline |
| CN104763855B (en) * | 2015-02-28 | 2017-01-11 | 美钻能源科技(上海)有限公司 | Adjustable pipe connection device |
| CN111089206A (en) * | 2019-12-31 | 2020-05-01 | 厦门三登塑胶工业有限公司 | Extension joint |
| CN112240045A (en) * | 2020-08-26 | 2021-01-19 | 蓝城乐居建设管理集团有限公司 | A subside flexible structure for going out wall drainage system |
| CN112664754A (en) * | 2020-12-18 | 2021-04-16 | 东信和平科技股份有限公司 | Leakage-proof device |
| CN113183039B (en) * | 2021-04-25 | 2023-03-14 | 太原理工大学 | Special clamp for cable bending type tail attached abrasive flow machining and machining method |
-
2003
- 2003-04-17 CN CN 03110063 patent/CN1212484C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1460807A (en) | 2003-12-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050727 Termination date: 20120417 |