CN202065594U - Novel plastic pipe fitting capable of preventing inner flanging - Google Patents
Novel plastic pipe fitting capable of preventing inner flanging Download PDFInfo
- Publication number
- CN202065594U CN202065594U CN2011200176316U CN201120017631U CN202065594U CN 202065594 U CN202065594 U CN 202065594U CN 2011200176316 U CN2011200176316 U CN 2011200176316U CN 201120017631 U CN201120017631 U CN 201120017631U CN 202065594 U CN202065594 U CN 202065594U
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- ring
- plastic pipe
- outer shroud
- port
- 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 a novel plastic pipe fitting capable of preventing inner flanging, an annular bell and spigot faucet is arranged on at least one end of the pipe fitting, and the annular bell and spigot faucet is provided with an outer ring and an inner ring. The outer ring is the ring made of the same material as the pipe fitting, the inner diameter of the outer ring is equivalent to the inner diameter of the bell mouth of a hot-melt socket joint connection plastic pipe fitting with the same specification, and a chamfer angle facing to the outer side of the pipe fitting is arranged at the inner side of the port of the outer ring; and the inner ring is a thin-walled stainless steel ring, the outer diameter of the inner ring is equivalent to the inner diameter of a plastic pipe with the same specification, and a chamfer angle facing to the inner side of the pipe fitting is arranged on the outer side of the port of the inner ring. The axial length of the upper section of the inner ring is 1-2mm longer than the port of the outer ring. At the bottom of the bell and spigot faucet, 2-4 exhaust holes are uniformly arranged in the inner ring along the radial direction and 1 observation hole is arranged in the outer ring along the radial direction. The novel plastic pipe fitting has the following significant effects: no inner flanging exists at the junction of the pipe fitting and a pipeline and the head loss can be avoided when water flows by the junction; when hot-melt socket joint connection is conducted to the pipe fitting and the pipeline, air in the bell and spigot faucet can be exhausted through the exhaust holes, the generation of false welding at the bottom of the bell and spigot faucet and the formation of bubbles on the welding surface of the pipe wall can be avoided and the impacts on the welding quality can be further avoided.
Description
Affiliated technical field
The utility model relates to a kind of novel plastic pipe fitting that prevents small-bore plastic pipe formation in-flanges when doing the thermofusible spigot connection.
Background technique
Existing small-bore plastic pipe can cause loss of head doing the in-flanges that forms when thermofusible spigot connects.Especially the life that is in the city planting ductwork end pipe of registering one's residence, the small-bore plastic water supply pipe of many employings, wherein a large amount of all employings thermofusible spigot Placements connect, the in-flanges that the joint forms when thermofusible spigot connects has had a strong impact on terminal use's hydraulic pressure, in order to guarantee terminal use's hydraulic pressure, just must pressurize, improve energy consumption thus, strengthen the cost of water undertaking to city planting ductwork.
Summary of the invention
In order to address the above problem, the utility model provides a kind of and prevents that small-bore plastic pipe from forming the novel plastic pipe fitting of in-flanges when doing the thermofusible spigot connection.
The utility model realizes that the technological scheme that above imagination is adopted is: have an annular socket at the end that has at least that adopts heat to melt the small-bore plastic pipe that the socket joint mode connects, bellmouth is provided with outer shroud and interior ring.Outer shroud is and the ring of pipeline with material, and bore diameter of outer ring equals the internal diameter that the same specification thermofusible spigot connects the plastic pipe bellmouth, and inboard, outer central port has towards the chamfering in the pipe fitting outside; Interior ring is the thin-wall stainless steel ring, and its external diameter equals the internal diameter of same specification plastic tube, and the outside, interior central port has towards the chamfering of pipe fitting inboard.Interior ring epimere axial length slightly is longer than outer shroud, and interior ring hypomere firmly is connected with the pipe fitting plastic liner.The degree of depth of annular socket is consistent with the bellmouth degree of depth of existing same specification plastic pipe.In bellmouth bottom, on interior ring, radially evenly be provided with 2-4 exhaust port, staggering radially and with the exhaust port position at outer shroud is provided with 1 peep hole.
Adopt the plastic pipe of the utility model manufacturing to have following remarkable result: ring is the thin-wall stainless steel ring in the pipe fitting, can not produce loss of head because of the heating and melting undergauge; Pipe fitting and pipeline junction can not form in-flanges, and water flows through does not have the head loss herein; Pipe fitting and pipeline are carrying out thermofusible spigot when being connected, and the air in the bellmouth is discharged by exhaust port, can make the welding of plastic tube end face and bellmouth bottom good, can not produce rosin joint in the bellmouth bottom and form bubble at the tube wall face of weld, thereby influence welding quality; Can be observed when doing thermofusible spigot and connecting from peep hole, whether pipeline is inserted into the position, thereby guarantees welding quality.
Description of drawings
Fig. 1 passes through the sectional view of the section of bellmouth medial axis and peep hole medial axis simultaneously for the utility model.
Encircle ring chamfering 9. peep holes in the hypomere 7. outer shroud chamferings 8. in ring epimere 4. exhaust ports 5. bellmouths 6. in 1. pipe fittings, 2. outer shrouds 3. among the figure.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Among Fig. 1, have an annular socket (5) at the end that has at least that adopts heat to melt the small-bore plastic pipe (1) that the socket joint mode connects, bellmouth (5) is provided with outer shroud (2) and interior ring.Outer shroud (2) is and the ring of pipeline with material, and outer shroud (2) internal diameter equals the internal diameter that the same specification thermofusible spigot connects the plastic pipe bellmouth, and outer shroud (2) port inboard has towards the chamfering (7) in pipe fitting (1) outside; Interior ring is the thin-wall stainless steel ring, and its external diameter equals the internal diameter of same specification plastic tube, and the outside, interior central port has towards the inboard chamfering (8) of pipe fitting (1).Interior ring epimere (3) axial length grows outer shroud port one-2mm, and interior ring hypomere (6) firmly is connected with pipe fitting (1) plastic liner.The degree of depth of annular socket (5) is consistent with the bellmouth degree of depth of existing same specification plastic pipe.In bellmouth (5) bottom, on interior ring, radially evenly be provided with 2-4 exhaust port (4), staggering radially and with exhaust port (4) position at outer shroud (2) is provided with 1 peep hole (9).
Pipe fitting (1) and pipeline are carrying out thermofusible spigot when being connected, and the air in the bellmouth (5) is discharged by exhaust port (4).The joint can not form in-flanges, just can therefore not produce loss of head yet.
Claims (2)
1. novel plastic pipe fitting that can prevent in-flanges, it is characterized in that: have an annular socket (5) at the end that has at least that adopts heat to melt the small-bore plastic pipe (1) that the socket joint mode connects, bellmouth (5) is provided with outer shroud (2) and interior ring, outer shroud (2) is and the ring of pipeline with material, outer shroud (2) internal diameter equals the internal diameter that the same specification thermofusible spigot connects the plastic pipe bellmouth, and outer shroud (2) port inboard has towards the chamfering (7) in pipe fitting (1) outside; Interior ring is the thin-wall stainless steel ring, and its external diameter equals the internal diameter of same specification plastic tube, and the outside, interior central port has towards the inboard chamfering (8) of pipe fitting (1); In bellmouth (5) bottom, on interior ring, radially evenly be provided with 2-4 exhaust port (4), staggering radially and with exhaust port (4) position at outer shroud (2) is provided with 1 peep hole (9).
2. novel plastic pipe fitting according to claim 1 is characterized in that: interior ring epimere (3) axial length grows outer shroud port one-2mm, and interior ring hypomere (6) firmly is connected with pipe fitting (1) plastic liner; The degree of depth of annular socket (5) is consistent with the bellmouth degree of depth of existing same specification plastic pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200176316U CN202065594U (en) | 2011-01-05 | 2011-01-05 | Novel plastic pipe fitting capable of preventing inner flanging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200176316U CN202065594U (en) | 2011-01-05 | 2011-01-05 | Novel plastic pipe fitting capable of preventing inner flanging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065594U true CN202065594U (en) | 2011-12-07 |
Family
ID=45059456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200176316U Expired - Fee Related CN202065594U (en) | 2011-01-05 | 2011-01-05 | Novel plastic pipe fitting capable of preventing inner flanging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588703A (en) * | 2011-01-05 | 2012-07-18 | 席勇 | Novel plastic pipe fitting capable of preventing inner flanging |
-
2011
- 2011-01-05 CN CN2011200176316U patent/CN202065594U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588703A (en) * | 2011-01-05 | 2012-07-18 | 席勇 | Novel plastic pipe fitting capable of preventing inner flanging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20111207 Termination date: 20120105 |