CN204372428U - A kind of transit joint of plastic pipe - Google Patents
A kind of transit joint of plastic pipe Download PDFInfo
- Publication number
- CN204372428U CN204372428U CN201420861078.8U CN201420861078U CN204372428U CN 204372428 U CN204372428 U CN 204372428U CN 201420861078 U CN201420861078 U CN 201420861078U CN 204372428 U CN204372428 U CN 204372428U
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- transit joint
- groove
- plastic pipe
- pvc
- transition piece
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Abstract
A transit joint for plastic pipe, it comprises the transition piece of tubular structure, and one end of described transition piece is female end, and the other end is welding end; Female end inwall has annular groove, is provided with special-shaped seal ring in groove.Described transit joint female end can be connected with PVC socket joint, and welding end can be connected with the tubing of material or pipe fitting hot melt or electric smelting with TPO, thus the pipeline of TPO material can be introduced in PVC pipeline system.Described transit joint has the features such as good seal performance, intensity are high, long service life.
Description
Technical field
The utility model relates to pipe technology field, the transition piece particularly in PVC pipeline connected system.
Background technique
In current pipe-line system, the size of PVC can reach diameter 1200mm, be about 50 years working life, but pipeline connection transition piece because the mobility of PVC material is poor, is difficult to the heavy caliber PVC pipe transition piece being obtained more than diameter 630mm by the method for molding and forming as threeway, flange, elbow etc.The material of current heavy caliber transition piece mainly contains polyethylene (PE), polypropylene (PP), cast iron and steel and moulds.General steel plastic pipe or cast iron pipe fittings bore can reach 800mm, but the pipe fitting perishable life-span only has about 10 years, although carried out preservative treatment be also difficult to have identical working life with PVC, and use cast iron pipe fittings will set up a set of new pipe fitting system, spend huge input.The connection pipe fitting using polyolefine material (as polythene PE, polypropylene PP) to make has the feature of high strength, high tenacity, long service life, and heat-melting butt-joint or electric smelting can be adopted to connect.But polyolefine material had application at small-bore (below diameter 355mm) pipe fitting, be applied in above-mentioned large-caliber pipe fittings, because its flexible sealing cannot reliably be fixed, having a strong impact on the reliability of installing and using.Therefore, in the engineer applied of PVC system, how to meet the connection requirement of heavy caliber, high-strength PVC tubing, become problem demanding prompt solution.
Model utility content
Technical problem to be solved in the utility model is the defect overcoming prior art, a kind of transit joint of plastic pipe is provided, it can either be connected with PVC socket joint, again can with polyolefin pipe fitting or tubing welding, there is the features such as good seal performance, intensity is high, the life-span is long.
Technical problem described in the utility model realizes with following technical proposals:
A transit joint for plastic pipe, it comprises the transition piece of tubular structure, and one end of described transition piece is female end, and the other end is welding end; Female end inwall has annular groove, is provided with special-shaped seal ring in groove.
The transit joint of above-mentioned plastic pipe, described groove is dove-tail form groove.
The transit joint of above-mentioned plastic pipe, the shape of described seal ring cross section is the dove-tail form corresponding with dove-tail form groove.
Transit joint of the present utility model adopts polyolefine material machine shaping, the female end of transit joint is that the mode that seal ring connects is connected with PVC, and the connection with heavy caliber high-strength PVC can be met, evaded the problem that heavy caliber PVC pipe is difficult to molding and forming.Female end inwall has the dove-tail form groove of annular, is provided with dove-tail form flexible seal ring in groove, and can realize the effectively fixing of flexible sealing, the double sealing structure of dove-tail form seal ring simultaneously, strengthens sealing effect, ensures the reliability that tubing is installed and used.
Welding end can be connected by hot melt or electric smelting with the tubing of same material or pipe fitting, easy to connect and the intensity of weld is high, effectively can solve the connectivity problem of PVC pipeline system, and the connection of PVC pipeline system and other plastic duct systems can be realized.Above-mentioned transit joint has higher bearing capacity and stronger toughness and corrosion resistance, can use more than 50 years safely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the cross-sectional view of the utility model seal ring.
In figure, each list of reference numerals is: 1, transition piece, 2, welding end, 3, female end, 4, seal ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, transit joint of the present utility model is the transition piece 1 that polyolefine material is made.Described transition piece 1 is tubular structure, and one end diameter is slightly larger than the other end, and one end that diameter is large is female end 3, is connected with PVC socket joint.One end that diameter is little is welding end 2, can dock or electric smelting connects with the plastic pipe hot-melting of same material.The inwall of female end 3 has annular groove, and groove is embedded with flexible grommet 4.Groove is dove-tail form groove, and the shape of seal ring 4 is dove-tail form, and corresponding with groove.There are two surface of contact seal ring and transit joint inside, and the bottom of seal ring cross section is arc-shaped concave, while strengthening sealing intensity, therefore ensure that the elastic strain of seal ring pressure-bearing process, improve sealing effect.
Female end is in order to insert PVC.The pipeline of TPO material in order to be connected with the tubing of material or pipe fitting hot melt or electric smelting with TPO, thus can be introduced in PVC pipeline system by welding end.Polyolefine material is polyethylene (PE), polypropylene (PP) or acrylonitrile, butadiene, styrol copolymer (ABS) etc.
Claims (3)
1. a transit joint for plastic pipe, is characterized in that, it comprises the transition piece (1) of tubular structure, and one end of described transition piece (1) is female end (3), and the other end is welding end (2); Female end (3) inwall has annular groove, is provided with special-shaped seal ring (4) in groove.
2. the transit joint of plastic pipe according to claim 1, is characterized in that, described groove is dove-tail form groove.
3. the transit joint of plastic pipe according to claim 2, is characterized in that, the shape of described seal ring (4) cross section is the dove-tail form corresponding with dove-tail form groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861078.8U CN204372428U (en) | 2014-12-31 | 2014-12-31 | A kind of transit joint of plastic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861078.8U CN204372428U (en) | 2014-12-31 | 2014-12-31 | A kind of transit joint of plastic pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372428U true CN204372428U (en) | 2015-06-03 |
Family
ID=53328649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420861078.8U Active CN204372428U (en) | 2014-12-31 | 2014-12-31 | A kind of transit joint of plastic pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372428U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107362022A (en) * | 2017-08-18 | 2017-11-21 | 南京乐基医疗器械有限公司 | Full thoracic cavity high-frequency impulse sputum excretion system and its pectoral girdle |
| US10808844B2 (en) | 2017-02-06 | 2020-10-20 | North American Pipe Corporation | System, method and apparatus for pipe restrained joint seal and lock |
| CN113819331A (en) * | 2021-09-27 | 2021-12-21 | 江苏狼博管道制造有限公司 | Self-pressurizing sealing rubber ring for plastic pipeline and preparation process thereof |
-
2014
- 2014-12-31 CN CN201420861078.8U patent/CN204372428U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10808844B2 (en) | 2017-02-06 | 2020-10-20 | North American Pipe Corporation | System, method and apparatus for pipe restrained joint seal and lock |
| CN107362022A (en) * | 2017-08-18 | 2017-11-21 | 南京乐基医疗器械有限公司 | Full thoracic cavity high-frequency impulse sputum excretion system and its pectoral girdle |
| CN113819331A (en) * | 2021-09-27 | 2021-12-21 | 江苏狼博管道制造有限公司 | Self-pressurizing sealing rubber ring for plastic pipeline and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |