CN2463657Y - Thread joint for plastic water supply pipe - Google Patents
Thread joint for plastic water supply pipe Download PDFInfo
- Publication number
- CN2463657Y CN2463657Y CN 01201495 CN01201495U CN2463657Y CN 2463657 Y CN2463657 Y CN 2463657Y CN 01201495 CN01201495 CN 01201495 CN 01201495 U CN01201495 U CN 01201495U CN 2463657 Y CN2463657 Y CN 2463657Y
- Authority
- CN
- China
- Prior art keywords
- plastic water
- pipe fitting
- water supply
- dolioform
- pipe
- 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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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model discloses a thread joint for plastic water supply pipes, which is used for water supply and gas supply systems of running water, farm irrigation, chemical industries and environmental protection. The utility model has the technical proposals that both ends are provided with a pipe fitting 1 with outer threads and two screw nuts 5 which are matched with the pipe fittings 1. The utility model is characterized in that the inner of the screw nuts 5 and ends of the pipe fitting 1 are provided with hollow waist drum-shaped sealing members 4; the inner walls of the screw nuts 5 and both end faces of the pipe fittings 1 are provided with cambered surfaces 3 which are matched with the waist drum-shaped sealing members 4; the end parts near the sealing members 4 are provided with lug bosses 7 which are raised inward. The thread joint for plastic water supply pipes has the advantages of good sealing performance, simple and fast mounting and repair, etc.
Description
The utility model relates to a kind of joint of plastic water pipe, belongs to the link of a kind of liquid, gas delivery system use.
At present, when prior art is threaded to plastic water supply pipe spare, need at first to process, make the screw thread of certain specification, be connected to the waterexit end by threaded fitting piecemeal by starting point again by the connecting port of screw die to plastic water pipe.Installation, maintenance takes a lot of work, time-consuming.
The purpose of this utility model is will provide a kind of easy for installation, maintenance easily, and the jointing of the plastic water pipe of good seal performance.
For realize technological scheme that the purpose of this utility model is taked comprise two ends have externally threaded pipe fitting 1, with two nuts 5 of the threads engaged of pipe fitting 1, it is characterized in that, in nut 5, the end of pipe fitting 1 is provided with the dolioform Sealing 4 of the logical heart, the inwall of nut 5 has the cambered surface 3 that matches with dolioform Sealing 4, two end faces of pipe fitting 1 have the cambered surface 3 that matches with dolioform Sealing, and the end of dolioform Sealing 4 tube parts 1 is provided with the boss 7 to the through hole internal projection.
In the above-mentioned technological scheme, the original curvature radius of the more dolioform Sealing 4 of original curvature radius of cambered surface 3 is big; The screw thread that pipe fitting 1 and nut 5 match is a standard pipe thread; Pipe fitting 1 and nut 5 are to be made of the plastics with material.
Advantage of the present utility model is:
1, can directly connect plastic water pipe, save plastic water pipe connecting end screw thread manufacturing procedure, installation, maintenance is easy, has improved work efficiency.
2, good seal performance, the reliability height.
Accompanying drawing is the cross-sectional schematic of the inipple of the utility model plastic water pipe when connecting water-feeding pipes.
Below in conjunction with accompanying drawing the utility model is further described.
Among the figure 1 is the pipe fitting of plastics, and 2 is screw thread, and 3 is cambered surface, and 4 is dolioform Sealing, and 5 is nut, and 6 is plastic water pipe.
The utility model is made the pipe fitting 1 of the plastics of worm structure, the nut 5 that plays the role of fastening by injection machine through mould, the dolioform seal ring 4 of rubber is by the mould heat pressure moulding.With spanner plastic water supply pipe spare 1 and nut 5 are tightened, the cambered surface of 3 pairs of dolioform Sealings 4 of cambered surface produces pressure, and to its end face generation thrust, on the one hand that plastic water pipe 6 is fixing, simultaneously dolioform Sealing 4 about two cambered surfaces and boss and the screw thread position of tightening form multi-sealed interface, reached the better seal effect.Install and dismantle, only use hacksaw, spanner to get final product when keeping in repair.Owing to removed the operation of plastic water pipe being carried out screw thread processing, improved work efficiency, so construction and keep in repair easy.
Claims (4)
1, a kind of inipple of plastic water pipe comprise two ends have externally threaded pipe fitting (1), with two nuts (5) of the threads engaged of pipe fitting (1), it is characterized in that, in nut (5), the end of pipe fitting (1) is provided with the dolioform Sealing (4) of the logical heart, the inwall of nut (5) has the cambered surface (3) that matches with dolioform Sealing (4), two end faces of pipe fitting (1) have the cambered surface (3) that matches with dolioform Sealing, and the end of dolioform Sealing (4) tube part (1) is provided with the boss (7) to the through hole internal projection.
2, the inipple of plastic water pipe according to claim 1 is characterized in that, the original curvature radius of the more dolioform Sealing of original curvature radius (4) of cambered surface (3) is big.
According to the inipple of the described plastic water pipe of claim 1, it is characterized in that 3, the screw thread that pipe fitting (1) and nut (5) match is a standard pipe thread.
According to the inipple of the described plastic water pipe of claim 1, it is characterized in that 4, pipe fitting (1) and nut (5) are to be made of the plastics with material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01201495 CN2463657Y (en) | 2001-02-16 | 2001-02-16 | Thread joint for plastic water supply pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01201495 CN2463657Y (en) | 2001-02-16 | 2001-02-16 | Thread joint for plastic water supply pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2463657Y true CN2463657Y (en) | 2001-12-05 |
Family
ID=33623507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01201495 Expired - Fee Related CN2463657Y (en) | 2001-02-16 | 2001-02-16 | Thread joint for plastic water supply pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2463657Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958431A (en) * | 2017-05-02 | 2017-07-18 | 荆州市翔龙石油科技有限公司 | A kind of environmental-protecting and high-efficient type polished rod sealer and its packing replacing method |
-
2001
- 2001-02-16 CN CN 01201495 patent/CN2463657Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958431A (en) * | 2017-05-02 | 2017-07-18 | 荆州市翔龙石油科技有限公司 | A kind of environmental-protecting and high-efficient type polished rod sealer and its packing replacing method |
| CN106958431B (en) * | 2017-05-02 | 2023-03-14 | 荆州市翔龙石油科技有限公司 | Environment-friendly efficient polished rod sealer and packing replacing method thereof |
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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 |