CN1761113A - Method for branching cable joint and structure of ring support for spacing wire - Google Patents
Method for branching cable joint and structure of ring support for spacing wire Download PDFInfo
- Publication number
- CN1761113A CN1761113A CN 200410067194 CN200410067194A CN1761113A CN 1761113 A CN1761113 A CN 1761113A CN 200410067194 CN200410067194 CN 200410067194 CN 200410067194 A CN200410067194 A CN 200410067194A CN 1761113 A CN1761113 A CN 1761113A
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- Prior art keywords
- cable
- branch
- heart yearn
- heat
- joint
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims description 9
- 239000004831 Hot glue Substances 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
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Abstract
The method is in use for power cable for illumining railway tunnel. Based on diameter of main cable, the method places matched ring support for spacing wire to core thread set. Each core thread is clipped to relevant groove on surface of ring support. Through open gap, middle cable enters to center of the ring support. A segment of insulation sheath of power cable to be educed out on one or two sides of the ring support are peeled off. The peeled branching cable and relevant cable are wire wrapped according to requirement, and corresponding binding up is carried out for the joint by using selfadhesive tape of electrician. The ring support for spacing wire is a shaped column. There is a through hole in center of the shaped column, and there are grooves matched to cables on surface. Advantages are: jointing without discontinuity, compact mechanical structure, reliable seal, and good electrical specification.
Description
Technical field
The present invention relates to a kind of railway tunnel illuminating power cable joint branching method and branch's central line shoring structure thereof of being used for.
Background technology
(it includes control core and electric power heart yearn to existing railway tunnel special lighting power cable, have special-purpose middle core, and make duplex sheath), in joint branch, in order to meet industry electrician wiring standard, the front and back dislocation must be carried out in electric power heart yearn joint, so usually need with the opening length of determining to do the main cable of branch draw longer, not only be not easy to construction and installation, sealing is poor, cause the decreasing insulating between the cable core easily, and the branch joint volume is grown up.
Summary of the invention
The object of the present invention is to provide a kind of be convenient to branch joint be used for railway tunnel illuminating power cable joint branching method and branch's central line shoring structure thereof, make the branch joint compact mechanical structure, good electric property.
A kind of railway tunnel illuminating power cable joint branching method that is used for provided by the present invention comprises the following steps: 1) do on the main cable of branch determining, clean the top layer that length is the branch part of L; 2) cut the oversheath of shelling L/2 length at the branch part middle part of L length, cut the sheath of stripping m length simultaneously again at the L/2 place, manifest the heart yearn group that comprises control core, middle core, electric power heart yearn, wherein, m＜L; 3) according to the diameter of main cable, branch's central line shoring structure of coupling is put into the heart yearn group, promptly each heart yearn is snapped in each corresponding grooves of central shoring surface, in the middle of it core then the aperture slots by central shoring enter in the middle of the central shoring; The electric power heart yearn that needs are drawn is peelled off one section insulation sheath of corresponding heart yearn in central shoring structure one or both sides, carry out tight solderless wrapped connection with corresponding electric power heart yearn by electrician's wiring requirement with stripping the branch cable heart yearn that the end of a thread draws, and do to wrap up accordingly with electrician's single-coated foam; 4) insulating bushing is installed around at the wire harness position, and make its two ends become taper with the wrapped lining of single-coated foam; 5) add around Hot melt adhesive tape at two ends, and fix with single-coated foam; 6) heat-shrinkable T bush is coated on the branch joint position, and, then the heat-shrinkable T bush of locking is adjusted at the joint middle part, make its left-right symmetric with chain jamming locking; 7) toast, heat the chain jamming both sides earlier, make that heat-shrinkable T bush near the chain jamming both sides fully shrinks, PUR fully melts, then progressively evenly heat to two ends respectively along garden Zhou Fangxiang from the beginning of heat-shrinkable T bush middle part, during baking cone position, joint two ends, knock chain jamming, make it to be affixed on lining and cable surface, after shrinking shaping, evenly baking back typing once more.
The above-mentioned railway tunnel illuminating power cable joint branching method that is used for, wherein, chain jamming places backbone cable one side, and branch's card inserts on the heat-shrinkable T bush between branch cable and the main cable, makes branch port become the figure of eight.
The present invention also provides a kind of cable branch central line shoring structure that is used for said method, the special-shaped cylinder of the groove that it is perforation in the middle of, the surface is furnished with is complementary with the control core of described cable and electric power heart yearn, and should the abnormity cylinder be formed by two double structure grafting self-clinchings.
Above-mentioned cable branch central line shoring structure, wherein, grafting self-clinching form is: slot and the slotting door bolt that interlocks with it.
Adopted above-mentioned technical solution, heat-shrinkable T bush can tightly be wrapped on the cable and be smooth smooth, and joint end and component should have PUR to overflow, no a bit slit between heat-shrinkable T bush PUR and the cable surface.Therefore, the present invention is not interrupted branch connection for the cable core of special cable, and this tap has compact mechanical structure, and feasible few with the line amount by branch's central line shoring structure, sealing is reliable, and good electric property, is convenient to advantages such as construction and installation.
Description of drawings
Fig. 1 (a)～(d) is a cable joint of the present invention branch step schematic diagram;
Fig. 2 is the stereogram of cable branch central line shoring structure of the present invention;
Fig. 3 is the decomposing schematic representation of cable branch central line shoring structure of the present invention.
Embodiment
Railway tunnel illuminating power cable joint branching method;
Shown in Fig. 1 (a),
1) determining to do on the main cable of branch, wiping the foul that is overlying on the top layer to the greatest extent with wet rag at branch part, drying with dry wipe, length is L;
2) cut the oversheath of shelling L/2 at its middle part;
3) cut the sheath of shelling m＜L/2 at Qi Chu again;
4) peel off the binder and the inserts at cable core place, manifest the heart yearn group that comprises control core, middle core, electric power heart yearn;
Shown in Fig. 1 (b),
5) according to the diameter of main cable, suitable branch's central line shoring structure is put into the heart yearn group, and each heart yearn snapped in each corresponding grooves of central shoring surface, the aperture slots of the middle heart yearn of cable by central shoring enters in the middle of the central shoring, the electric power heart yearn that needs are drawn is peelled off one section insulation sheath of corresponding heart yearn in the central shoring one or both sides, referring to Fig. 1 (a), undertaken more than tight 7 weeks of solderless wrapped connection by electrician's wiring requirement with corresponding electric power heart yearn stripping the branch cable heart yearn that the end of a thread draws, and do to wrap up accordingly with electrician's single-coated foam;
Shown in Fig. 1 (c),
6) insulating bushing is installed around at the wire harness position, and make its two ends become taper with the wrapped lining of single-coated foam;
7) add around Hot melt adhesive tape at two ends, and fix with single-coated foam;
8) heat-shrinkable T bush is coated on the branch joint position, and, then the heat-shrinkable T bush of locking is adjusted at the joint middle part, make its left-right symmetric with chain jamming locking;
When 9) doing branch, chain jamming should place main cable one side, on the heat-shrinkable T bush between branch's card insertion branch cable and the main cable, make branch port become the figure of eight (the minor diameter branch cable divides less for reasonable distribution heat-shrinkable T bush, the many branches in major diameter main cable place), note the gap of branch port, the gap domestic demand is suitably inserted hot-melt film, again branch cable and main cable is pricked, and prevents that branch's card skids off when heated baking;
Shown in Fig. 1 (d),
10) lighting benzine blow lamp toasts, heating chain jamming both sides (directly not heating on chain jamming) earlier, heat-shrinkable T bush near the chain jamming both sides is fully shunk, PUR fully melts, and then progressively evenly heats to two ends respectively along garden Zhou Fangxiang from the beginning of heat-shrinkable T bush middle part., during baking cone position, joint two ends, rap chain jamming with hammer, make it to be affixed on lining and cable surface, after the basic shaping of contraction, evenly toast one time with blowtorch again.
As stated above, heat-shrinkable T bush should tightly be wrapped on the cable and be smooth smooth, and joint end and component should have PUR to overflow, and make no a bit slit between heat-shrinkable T bush PUR and the cable surface.
Shown in Fig. 2-3, cable branch central line shoring structure 1, the special-shaped cylinder of the groove 12 that it is perforation 11 in the middle of, the surface is furnished with is complementary with the control core of described cable and electric power heart yearn, and should the abnormity cylinder be formed by two double structures, 10 grafting self-clinchings, grafting self-clinching form be: slot (the figure meta shows) and the slotting door bolt 13 that interlocks with it.
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or variation, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (4)
1. one kind is used for railway tunnel illuminating power cable joint branching method, comprises the following steps:
1) does on the main cable of branch determining, clean the top layer that length is the branch part of L;
2) cut the oversheath of shelling L/2 length at the branch part middle part of L length, cut the sheath of stripping m length simultaneously again at the L/2 place, manifest the heart yearn group that comprises control core, middle core, electric power heart yearn, wherein, m＜L/2;
3) according to the diameter of main cable, branch's central line shoring structure of coupling is put into the heart yearn group, promptly each heart yearn is snapped in each corresponding grooves of central shoring surface, in the middle of it core then the aperture slots by central shoring enter in the middle of the central shoring; The electric power heart yearn that needs are drawn is peelled off one section insulation sheath of corresponding heart yearn in central shoring structure one or both sides, carry out tight solderless wrapped connection with corresponding electric power heart yearn by electrician's wiring requirement with stripping the branch cable heart yearn that the end of a thread draws, and do to wrap up accordingly with electrician's single-coated foam;
4) insulating bushing is installed around at the wire harness position, and make its two ends become taper with the wrapped lining of single-coated foam;
5) add around Hot melt adhesive tape at two ends, and fix with single-coated foam;
6) heat-shrinkable T bush is coated on the branch joint position, and, then the heat-shrinkable T bush of locking is adjusted at the joint middle part, make its left-right symmetric with chain jamming locking;
7) toast, heat the chain jamming both sides earlier, make that heat-shrinkable T bush near the chain jamming both sides fully shrinks, PUR fully melts, then progressively evenly heat to two ends respectively along garden Zhou Fangxiang from the beginning of heat-shrinkable T bush middle part, during baking cone position, joint two ends, knock chain jamming, make it to be affixed on lining and cable surface, after shrinking shaping, evenly baking back typing once more.
2. a kind of railway tunnel illuminating power cable joint branching method that is used for according to claim 1, it is characterized in that: described chain jamming places backbone cable one side, on the heat-shrinkable T bush between branch's card insertion branch cable and the main cable, make branch port become the figure of eight.
3. cable branch central line shoring structure that is used for said method, it is characterized in that: the special-shaped cylinder of the groove that it is perforation in the middle of, the surface is furnished with is complementary with the control core of described cable and electric power heart yearn, and should the abnormity cylinder be formed by two double structure grafting self-clinchings.
4. cable branch central line shoring structure according to claim 3 is characterized in that: described grafting self-clinching form is: slot and the slotting door bolt that interlocks with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410067194 CN1761113A (en) | 2004-10-15 | 2004-10-15 | Method for branching cable joint and structure of ring support for spacing wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410067194 CN1761113A (en) | 2004-10-15 | 2004-10-15 | Method for branching cable joint and structure of ring support for spacing wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1761113A true CN1761113A (en) | 2006-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410067194 Pending CN1761113A (en) | 2004-10-15 | 2004-10-15 | Method for branching cable joint and structure of ring support for spacing wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1761113A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673600B (en) * | 2009-07-21 | 2011-10-05 | 江苏海达电缆有限公司 | A kind of manufacturing method of prefabricated branch cable |
| CN102509989A (en) * | 2011-11-29 | 2012-06-20 | 国网电力科学研究院 | Manufacturing method of but joints of elongated cables for geotechnical engineering instruments |
| CN105846184A (en) * | 2015-01-12 | 2016-08-10 | 北京瑞迪克科技发展有限责任公司 | Onsite branch power cable joint |
| CN106816839A (en) * | 2015-11-27 | 2017-06-09 | 日立金属株式会社 | Wiring component and manufacturing method of wiring component |
| CN108973029A (en) * | 2018-09-28 | 2018-12-11 | 金谷汽车部件有限公司 | Waterproof video harness and the injection mold and production technology for producing waterproof video harness |
| CN111161914A (en) * | 2019-12-28 | 2020-05-15 | 安庆市晶科电子有限公司 | Cable reinforced anti-compression easy-to-install sleeve mechanism for transistor |
| CN117690650A (en) * | 2023-12-19 | 2024-03-12 | 创时电缆(山东)有限公司 | A kind of pre-branch power cable |
-
2004
- 2004-10-15 CN CN 200410067194 patent/CN1761113A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673600B (en) * | 2009-07-21 | 2011-10-05 | 江苏海达电缆有限公司 | A kind of manufacturing method of prefabricated branch cable |
| CN102509989A (en) * | 2011-11-29 | 2012-06-20 | 国网电力科学研究院 | Manufacturing method of but joints of elongated cables for geotechnical engineering instruments |
| CN102509989B (en) * | 2011-11-29 | 2014-05-07 | 国网电力科学研究院 | Manufacturing method of but joints of elongated cables for geotechnical engineering instruments |
| CN105846184A (en) * | 2015-01-12 | 2016-08-10 | 北京瑞迪克科技发展有限责任公司 | Onsite branch power cable joint |
| CN106816839A (en) * | 2015-11-27 | 2017-06-09 | 日立金属株式会社 | Wiring component and manufacturing method of wiring component |
| CN106816839B (en) * | 2015-11-27 | 2020-08-21 | 日立金属株式会社 | Wiring member and method for manufacturing wiring member |
| CN108973029A (en) * | 2018-09-28 | 2018-12-11 | 金谷汽车部件有限公司 | Waterproof video harness and the injection mold and production technology for producing waterproof video harness |
| CN111161914A (en) * | 2019-12-28 | 2020-05-15 | 安庆市晶科电子有限公司 | Cable reinforced anti-compression easy-to-install sleeve mechanism for transistor |
| CN111161914B (en) * | 2019-12-28 | 2021-02-12 | 安庆市晶科电子有限公司 | Cable reinforced anti-compression easy-to-install sleeve mechanism for transistor |
| CN117690650A (en) * | 2023-12-19 | 2024-03-12 | 创时电缆(山东)有限公司 | A kind of pre-branch power cable |
| CN117690650B (en) * | 2023-12-19 | 2024-08-02 | 创时电缆(山东)有限公司 | Pre-branching power cable |
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