CN201751660U - Connecting structure of polyethylene hollow-wall spiral winding tubes - Google Patents
Connecting structure of polyethylene hollow-wall spiral winding tubes Download PDFInfo
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- CN201751660U CN201751660U CN2010201930927U CN201020193092U CN201751660U CN 201751660 U CN201751660 U CN 201751660U CN 2010201930927 U CN2010201930927 U CN 2010201930927U CN 201020193092 U CN201020193092 U CN 201020193092U CN 201751660 U CN201751660 U CN 201751660U
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- spiral winding
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Abstract
The utility model discloses a connecting structure of polyethylene hollow-wall spiral winding tubes, which comprises a first connecting part and a second connecting part that are respectively arranged at the corresponding ends of two polyethylene hollow-wall spiral winding tubes to be connected, wherein the inner wall of the first connecting part is provided with internal thread, and the outer wall of the second connecting part is provided with corresponding external thread; the first connecting part is screwed and connected with the second connecting part by the corresponding internal and external thread; and the screwing parts of the internal and external threads are welded together. When the connecting structure of the polyethylene hollow-wall spiral winding tubes is in connection, the first connecting part and the second connecting part are screwed and locked together according to the corresponding internal and external threads, and the screwing parts of the internal and external threads are welded together, so that the whole tube is firmer and better in sealing performance.
Description
Technical field
The utility model relates to a kind of drain pipe, specifically is a kind of polyethylene hollow wall spiral winding pipe.
Background technique
The wall of polyethylene hollow wall spiral winding pipe is the hollow I-shape construction, inner and outer surface is a smooth surface, the centre is a thread-like structure, it is to be main raw material with high density polyethylene (HDPE) (HDPE), according to the difference of selecting bore for use, extrude the four directions pipe of different size earlier, twine mould through Stetch Wrapping Machine and twine, and form with the welding of fusion PE phase, be a kind of structure-wall pipe material with higher critical external compressive resistance ability.
Existing polyethylene hollow wall spiral winding pipe, generally be to connect by the mode of welding, welding method mainly contains two kinds, a kind of by putting heat-contraction sleeve at joint, and heat-contraction sleeve is heated by the coal gas spray gun, make heat-contraction sleeve be subjected to thermal shrinkage, two polyethylene hollow wall spiral winding pipes are linked together, there is following deficiency in this welding manner: the coal gas spray gun needs artificial mobile spray gun to be rotated heating in to entwining tube heating process, causes the entwining tube heating inhomogeneous easily, the uniformity that weld shrinks is relatively poor, not only influence outward appearance, also can influence the tightness of joint, produce water leakage phenomenon; Also having a kind of is the mode that adopts Electric thermal smelting belt to coat, but this mode requires very high to the surface smoothness of tubing, and entwining tube is to twine to be welded, surface irregularity, have spirality, there is spiral gap in Electric thermal smelting belt with the entwining tube surface of contact when welding, rosin joint produces water leakage phenomenon easily.
The model utility content
The purpose of this utility model provides a kind of sealability linkage structure of polyethylene hollow wall spiral winding pipe preferably.
The technical solution of the utility model is such: the linkage structure of polyethylene hollow wall spiral winding pipe, first joint and second joint that comprise the respective end of two polyethylene hollow wall spiral winding pipes being located at the desire connection respectively, the inwall of above-mentioned first joint is provided with internal thread, the outer wall of above-mentioned second joint is provided with corresponding outside thread, above-mentioned first joint is screwed by above-mentioned corresponding internal and external screw thread with above-mentioned second joint and is connected, and the place of screwing togather of above-mentioned internal and external screw thread welds together.
The end of above-mentioned first, second joint is respectively and above-mentioned internal thread, the corresponding helical of outside thread.
The inner wall surface of above-mentioned first joint to the degree of depth between the flank of thread of above-mentioned internal thread is the 20-35% of the wall thickness of above-mentioned first joint.
The outer wall surface of above-mentioned second joint to the degree of depth between the above-mentioned externally threaded flank of thread is the 20-35% of the wall thickness of above-mentioned second joint.
After adopting such scheme, the beneficial effects of the utility model are: the inwall of first joint is provided with internal thread, the outer wall of second joint is provided with corresponding outside thread, during connection, first joint and second joint spin, are locked together according to this corresponding internal and external threads, and the place of screwing togather of internal and external screw thread welds together, and makes the integral body of pipe more firm, and sealability is better.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an axial cut-away view of the present utility model;
Fig. 3 is the partial enlarged drawing at A position among Fig. 2.
Embodiment
The linkage structure of polyethylene hollow wall spiral winding pipe of the present utility model as shown in Figure 1, 2, 3, comprises first joint 1 and second joint 2 of the respective end of the polyethylene hollow wall spiral winding pipe, the ∏ that are located at the desire connection respectively.
The inwall of first joint 1 is left the 20-35% (optimum value is 30%) that inner wall surface to the degree of depth between the flank of thread 111 of internal thread 11 of internal thread 11, the first joints 1 is the wall thickness of first joint 1 by driving the tooth machine.The end of first joint 1 is and internal thread 11 corresponding helicals the end of the joint 1 of winning along the spiral cutting of internal thread 11.
The outer wall of second joint 2 is left the 20-35% (optimum value is 30%) that outer wall surface to the degree of depth between the flank of thread 211 of outside thread 21 of corresponding outside thread 21, the second joints 2 is the wall thickness of second joint 2 by driving the tooth machine.The end of second joint 2 makes the end of second joint 2 be and outside thread 21 corresponding helicals along the spiral cutting of outside thread 21.
During connection, earlier with polyethylene hollow wall spiral winding pipe, ∏ horizontal alignment, determine internal and external screw thread 11,21 surface clean, no moisture and other impurity then, then second joint 2 is stretched in first joint 1, be screwed together with outside thread 21 by internal thread 11 and be in the same place, and the end of first joint 1 is corresponding with the end of second joint 2 to be connected to together, at last, again by artificial hand-held extrusion equipment, weld in gap to the place of screwing togather of internal and external screw thread 11,21, makes entwining tube inside and outside wall sealability more stable.
In the utility model, the length of first joint 1 and second joint 2 (being the reach of internal and external screw thread 11,21) is decided according to external diameter, the internal diameter of pipe, and the gage length of pipe is generally 6 meters or 12 meters.
Concrete application examples:
| Internal diameter (mm) | External diameter 1 (mm) | External diameter 2 (mm) | Reach (mm) |
| 300 | 340 | 341 | 100 |
| 400 | 450 | 455 | 100 |
| 500 | 560 | 569 | 130 |
| 600 | 675 | 683 | 155 |
| 700 | 788 | 797 | 170 |
| 800 | 900 | 910 | 180 |
| 900 | 1013 | 1024 | 200 |
| 1000 | 1125 | 1138 | 200 |
| 1200 | 1350 | 1366 | 240 |
| 1400 | 1575 | 1593 | 260 |
| 1500 | 1680 | 1707 | 280 |
| 1600 | 1792 | 1821 | 280 |
| 1800 | 2016 | 2048 | 300 |
| 2000 | 2240 | 2276 | 300 |
| 2200 | 2464 | 2504 | 300 |
Claims (4)
1. the linkage structure of polyethylene hollow wall spiral winding pipe, first joint and second joint that comprise the respective end of two polyethylene hollow wall spiral winding pipes being located at the desire connection respectively, it is characterized in that: the inwall of above-mentioned first joint is provided with internal thread, the outer wall of above-mentioned second joint is provided with corresponding outside thread, above-mentioned first joint is screwed by above-mentioned corresponding internal and external screw thread with above-mentioned second joint and is connected, and the place of screwing togather of above-mentioned internal and external screw thread welds together.
2. the linkage structure of polyethylene hollow wall spiral winding pipe according to claim 1 is characterized in that: the end of above-mentioned first, second joint is respectively and above-mentioned internal thread, the corresponding helical of outside thread.
3. the linkage structure of polyethylene hollow wall spiral winding pipe according to claim 1 is characterized in that: the inner wall surface of above-mentioned first joint to the degree of depth between the flank of thread of above-mentioned internal thread is the 20-35% of the wall thickness of above-mentioned first joint.
4. the linkage structure of polyethylene hollow wall spiral winding pipe according to claim 1 is characterized in that: the outer wall surface of above-mentioned second joint to the degree of depth between the above-mentioned externally threaded flank of thread is the 20-35% of the wall thickness of above-mentioned second joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201930927U CN201751660U (en) | 2010-05-11 | 2010-05-11 | Connecting structure of polyethylene hollow-wall spiral winding tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201930927U CN201751660U (en) | 2010-05-11 | 2010-05-11 | Connecting structure of polyethylene hollow-wall spiral winding tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201751660U true CN201751660U (en) | 2011-02-23 |
Family
ID=43602067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201930927U Expired - Fee Related CN201751660U (en) | 2010-05-11 | 2010-05-11 | Connecting structure of polyethylene hollow-wall spiral winding tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201751660U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065850A (en) * | 2015-08-28 | 2015-11-18 | 风范绿色建筑（常熟）有限公司 | Compound square tube |
| CN106195482A (en) * | 2016-09-09 | 2016-12-07 | 中交隧道局电气化工程有限公司 | It is applicable to the flange connecting assembly of metal bellows |
| CN112856042A (en) * | 2021-01-05 | 2021-05-28 | 江苏亿豪塑业股份有限公司 | Elastic structure polytetrafluoroethylene tube |
| CN113446292A (en) * | 2021-07-23 | 2021-09-28 | 上海电气风电集团股份有限公司 | Connecting assembly for tower barrel, tower barrel and fan assembly |
-
2010
- 2010-05-11 CN CN2010201930927U patent/CN201751660U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065850A (en) * | 2015-08-28 | 2015-11-18 | 风范绿色建筑（常熟）有限公司 | Compound square tube |
| CN106195482A (en) * | 2016-09-09 | 2016-12-07 | 中交隧道局电气化工程有限公司 | It is applicable to the flange connecting assembly of metal bellows |
| CN112856042A (en) * | 2021-01-05 | 2021-05-28 | 江苏亿豪塑业股份有限公司 | Elastic structure polytetrafluoroethylene tube |
| CN112856042B (en) * | 2021-01-05 | 2021-11-30 | 江苏亿豪塑业股份有限公司 | Elastic structure polytetrafluoroethylene tube |
| CN113446292A (en) * | 2021-07-23 | 2021-09-28 | 上海电气风电集团股份有限公司 | Connecting assembly for tower barrel, tower barrel and fan assembly |
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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: 20110223 Termination date: 20130511 |