CN1366157A - Connection method of pipe joint for pipe with plastic liner - Google Patents
Connection method of pipe joint for pipe with plastic liner Download PDFInfo
- Publication number
- CN1366157A CN1366157A CN 01139246 CN01139246A CN1366157A CN 1366157 A CN1366157 A CN 1366157A CN 01139246 CN01139246 CN 01139246 CN 01139246 A CN01139246 A CN 01139246A CN 1366157 A CN1366157 A CN 1366157A
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- China
- Prior art keywords
- pipe
- plastic
- pipe joint
- joint body
- tubing
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Abstract
A connection method for joint of pipe with plastic inner wall includes a joint body of pipe. At least one end of the joint body is of cone shape, and screw thread is made on the exterior of this end. A junforcing ring is put to one end of the pipe to be connected, then turn the screw threaded end of the joint body into the plastic base on the pipe end to be connected. Teeth can be made on the inner wall to prevent the pipe from displacement in circumference direction. Self-tapping screw thread makes better connection fit, and the junforcing ring limits this end of pipe to occur exponded strain. The invented connection possesses advantages of high-pressure and high-temperature resistance, drawing torsional and bending resistance, low cost, and high reliability. It can be used in connections of pipe such as aluminum-plastic, cross-linked polyethylene pipes, steel-plastic, polypropylene composite pipes.
Description
Technical field:
The present invention relates to a kind of linking method of pipeline, especially a kind of connecting element of joint of aluminium-plastic composite pipe pipeline.
Background technique:
In the prior art, tubing such as aluminium-plastic composite pipe, crosslinked polyethylene pipe, steel-plastic composite pipe, polypropylene tube are widespread usage, wherein aluminium-plastic composite pipe have corrosion-resistant, high temperature resistant, high pressure resistant, antistatic, inner wall smooth, fluid resistance little, be difficult for incrustation, heat-insulation and heat-preservation, be difficult for embrittlement, long service life, advantages such as in light weight, convenient in carrying all have remarkable advantages than present widely used metal pipe and other plastic tubes at aspects such as mechanical property, chemical property, prices.In the prior art, the pipe fitting Placement that is applied in the pipeline that aluminium-plastic composite pipe forms has Placements such as FERRULETYPE, compression type, clamp-press type, clamp band type, spigot and socket type.
Summary of the invention:
Technical problem to be solved by this invention is: in the prior art, adopt Placements such as FERRULETYPE, compression type, clamp-press type, clamp band type, spigot and socket type in the plastic-aluminum combined pipeline, because the material behavior of aluminium-plastic composite pipe, the barotolerance and the heat-resisting quantity of pipe coupling are relatively poor, simultaneously tension pull out force, ability counter-bending and distortion are lower, manufacture cost is big, installation reliability is difficult to hold, influenced the normal use of plastic pipe, the pipe coupling that has can only be used for exposed conduit and lay, can not be used for hidden pipe and lay, the phenomenon of plastic pipe joint seepage often takes place.The present invention provides a kind of connecting means that is applied to the pipe joint of plastic liner tubing for the technological scheme that above-mentioned technical problem adopted that solves in the prior art, described this connecting means comprises, at least one end of a pipe joint body is set to coniform, excircle at this end of described pipe joint body is provided with screw thread, a stiffening ring is linked in an end of the tubing of required connection, again the threaded end of described pipe joint body is screwed into the plastic substrate of described tubing one end.For preventing that tubing is subjected to displacement at circumferencial direction, can also on the madial wall of described stiffening ring, double wedge be set.The present invention and prior art contrast, because on pipe joint, adopted Thread Forming TF, Thread Forming TF produces the screw thread alveolus of line in the shape of a spiral in the pipe material inner wall cutting, Thread Forming TF and screw thread alveolus are realized threaded closure, the expansion deformation that described this end of stiffening ring restriction tubing takes place, so sealability is better, and high pressure resistant high temperature, anti-pulling, counter-bending and the distortion, low cost of manufacture, installation reliability is strong, not only can apply to aluminium-plastic composite pipe and connect, also can apply to crosslinked polyethylene pipe, steel-plastic composite pipe, plastics such as polypropylene tube are connected with compound plastic pipe.
Description of drawings:
Fig. 1 is an embodiment's the schematic representation of the connecting means of the present invention's pipe joint of being applied to plastic liner tubing.
Fig. 2 is the schematic representation of the stiffening ring among the embodiment of connecting means of the present invention's pipe joint of being applied to plastic liner tubing.
Embodiment:
As shown in Figure 1, a kind of connecting means that is applied to the pipe joint of plastic liner tubing of the present invention, comprise, at least one end of a pipe joint body 1 is set to coniform, excircle at this end of described pipe joint body is provided with screw thread, a stiffening ring 3 is linked in an end of the tubing 5 of required connection, utilizes two spanners to act on stiffening ring 3 and pipe joint body 1 respectively, the threaded end 2 of described pipe joint body 1 is screwed into the plastic substrate of described tubing 5 one ends.As shown in Figure 2, be subjected to displacement at circumferencial direction, double wedge 4 can also be set on the madial wall of described stiffening ring 3 for preventing tubing 5.Thread Forming TF on the pipe joint produces the screw thread alveolus of line in the shape of a spiral in the pipe material inner wall cutting, Thread Forming TF and screw thread alveolus are realized threaded closure, the expansion deformation that described stiffening ring 3 restriction tubing 5 these ends take place, so it is better to use the joint sealing performance of this method connection, and high pressure resistant high temperature, anti-pulling, counter-bending and the distortion, low cost of manufacture, installation reliability is strong, not only can apply to aluminium-plastic composite pipe and connect, also can apply to plastics such as crosslinked polyethylene pipe, steel-plastic composite pipe, polypropylene tube and be connected with compound plastic pipe.
Claims (3)
1, a kind of connecting means that is applied to the pipe joint of plastic liner tubing, it is characterized in that: described connecting means comprises that at least one end of a pipe joint body is set to coniform, excircle at this end of described pipe joint body is provided with screw thread, a stiffening ring is linked in an end of the tubing of required connection, again the threaded end of described pipe joint body is screwed into the plastic substrate of described tubing one end.
2, a kind of connecting means that is applied to the pipe joint of plastic liner tubing as claimed in claim 1 is characterized in that: on the madial wall of described stiffening ring double wedge is set.
3, a kind of connecting means that is applied to the pipe joint of plastic liner tubing as claimed in claim 1 is characterized in that: the pipeline of described plastic liner tubing is an aluminium-plastic composite pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01139246 CN1366157A (en) | 2001-12-27 | 2001-12-27 | Connection method of pipe joint for pipe with plastic liner |
| CN 02152522 CN1441188A (en) | 2001-12-27 | 2002-11-20 | Connection method of pipeline union |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01139246 CN1366157A (en) | 2001-12-27 | 2001-12-27 | Connection method of pipe joint for pipe with plastic liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1366157A true CN1366157A (en) | 2002-08-28 |
Family
ID=4675169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01139246 Pending CN1366157A (en) | 2001-12-27 | 2001-12-27 | Connection method of pipe joint for pipe with plastic liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1366157A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430035B (en) * | 2008-12-02 | 2010-10-06 | 浙江世进水控股份有限公司 | Sliding type aluminium plastic composite pipe fittings |
| CN102705624A (en) * | 2011-09-26 | 2012-10-03 | 常德市西湖管理区兴民专业合作社 | Adhesive-free hot-melting-free plastic running water pipe joint |
| CN106678475A (en) * | 2017-02-08 | 2017-05-17 | 江苏龙麒橡塑有限公司 | Pipe fitting connector for plastic oil conveying pipe and metal oil conveying pipe |
-
2001
- 2001-12-27 CN CN 01139246 patent/CN1366157A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430035B (en) * | 2008-12-02 | 2010-10-06 | 浙江世进水控股份有限公司 | Sliding type aluminium plastic composite pipe fittings |
| CN102705624A (en) * | 2011-09-26 | 2012-10-03 | 常德市西湖管理区兴民专业合作社 | Adhesive-free hot-melting-free plastic running water pipe joint |
| CN106678475A (en) * | 2017-02-08 | 2017-05-17 | 江苏龙麒橡塑有限公司 | Pipe fitting connector for plastic oil conveying pipe and metal oil conveying pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |