CN202013762U - Water-resisting type copper-shielding railroad axle counting cable - Google Patents
Water-resisting type copper-shielding railroad axle counting cable Download PDFInfo
- Publication number
- CN202013762U CN202013762U CN2011200855196U CN201120085519U CN202013762U CN 202013762 U CN202013762 U CN 202013762U CN 2011200855196 U CN2011200855196 U CN 2011200855196U CN 201120085519 U CN201120085519 U CN 201120085519U CN 202013762 U CN202013762 U CN 202013762U
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Abstract
The utility model provides a water-resisting type copper-shielding railroad axle counting cable which comprises a cable core and a cover layer coated outside the cable core. The cable core comprises at least one line group, and each line group comprises a plurality of single lines and a binding yarn winding the plurality of single lines; each single line comprises a conductor and an insulation layer coated on the circumference of the conductor; the cover layer comprises a PET (polyethylene terephthalate) strip wrapping layer, a water-resisting strip wrapping layer, a copper strip lengthways wrapping shielding layer, a polyvinyl bonding cover layer, a galvanized steel strip clearance wrapping armor layer, and a polyvinyl external sheath sequentially from the inside out; and petroleum jelly is filled among cable cores in the PET strip wrapping layer. The cable provided by the utility model has excellent transverse water-resisting and lengthways water-resisting functions, meanwhile, through wrapping the copper strip layer outside the cable core, the cable has excellent shielding property and can not be influenced by other external factors during the use, thereby ensuring the stability of signal transmission and improving the safety and reliability.
Description
Technical field
The utility model relates to a kind of cable, particularly a kind of railway meter shaft cable.
Background technology
What China railways adopted at present all is the composite sheath of the vertical bag of plastic-aluminum banding pattern.Along with the raising of train speed, the expansion of distance between sites, performance requirement to cable is higher, and therefore, the composite sheath of the vertical bag of plastic-aluminum banding pattern can't satisfy instructions for use, some rainy humid areas particularly, the moisture resistance of cable and and shielding seem particularly important.
The utility model content
The utility model purpose be provide in order to overcome the deficiencies in the prior art that a kind of shield effectiveness is good, mechanical strength is high, good bending property, low impedance at high frequency, the superior waterproofing type copper shield railway meter shaft cable of block-water performance.
For achieving the above object, the technical solution adopted in the utility model is: a kind of waterproofing type copper shield railway meter shaft cable, it comprises cable core, be coated on the outer sheath of cable core, described cable core comprises at least one line group, each line group comprises a plurality of single lines, wrapped bundle yarn in a plurality of single line peripheries, each single line is by conductor, the insulating barrier that is coated on the conductor periphery is formed, described sheath comprises PET band lapping layer from the inside to the outside successively, the waterstop lapping layer, the vertical bag of copper strips screen, the polyethylene bonding sheath, the wrapped armour in galvanized steel strip gap, the polyethylene oversheath also is filled with petroleum jelly between the cable core in described PET band lapping layer.
According to technique scheme in the mode further implemented, described waterproofing type copper shield railway meter shaft cable is to guarantee that the copper strips screen keeps excellent electric screen in laying back and long-term the use, be close to cable core band waterstop lapping layer and be provided with the earial drainage lead, screen extrudes layer of polyethylene bonding sheath outward simultaneously, has avoided the burn into humidity resistance of shielding copper strips and the reliability of good insulation performance performance and insulation against ground.
Further, the insulating barrier on the single line described in the utility model is solid polyethylene insulation material.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage: the utility model employing PET band lapping layer, waterstop lapping layer, polyethylene bonding sheath, the wrapped armour in galvanized steel strip gap and petroleum jelly packed layer make the cable that forms have superior laterally blocking water and vertical water stop function.Simultaneously, by outside cable core, coating the layer of copper band, make cable have superior shielding properties, in use, be not subjected to the interference of other extraneous factor, thereby guarantee the stable of signal transmission, make transmission signals undistorted, indeformable, improve the security reliability of cable.
Description of drawings
Accompanying drawing 1 is a cable cross-section schematic diagram of the present utility model;
Wherein: 1, low frequency quad; 2, signal quad; 3, copper conductor; 4, polyethylene layer; 5, prick yarn; 6, petroleum jelly; 7, PET lapping layer; 8, waterstop lapping layer; 9, earial drainage lead; 10, vertical copper-clad band screen; 11, polyethylene bonding sheath; 12, the wrapped armour in galvanized steel strip gap; 13, polyethylene outer jacket;
Embodiment
Particular content below in conjunction with accompanying drawing, detailed description the utility model preferred implementation:
Waterproofing type copper shield railway meter shaft cable as shown in Figure 1 comprises cable core, is coated on the outer sheath of cable core.Wherein, cable core is made up of the low frequency quad 1 of two 0.9mm, two 1.0mm signal quads 2, each quad is made up of four mutually stranded single lines and wrapped bundle yarn 5 outside four single lines, and every single line is made up of conductor 3 and the solid polyethylene layer 4 that is extruded in conductor 3 peripheries.Low frequency quad 1 and signal quad 2 are arranged in accordance with regulations and are twisted into cable core, and at cable core gap filled stone ointment 6.
Sheath coats PET lapping layer 7 and waterstop lapping layer 8 from inside to outside successively, be close to waterstop lapping layer 8 and be provided with earial drainage lead 9, vertical bag one deck copper strips screen 10 outside earial drainage lead 9, the copper strips screen 10 outer layer of polyethylene bonding sheaths 11 that extrude, the wrapped two-layer galvanized steel strip of polyethylene bonding sheath 11 external series gaps extrudes layer of polyethylene outer jackets 13 as armour 12 outside the armour 12.
The cable of said structure has good shielding properties and water stop function, and the security reliability of cable is higher.
More than specific embodiment of the present utility model is illustrated and illustrates; but the utility model is not only limited to above embodiment; be not limited to four line groups as cable core, all equivalent transformations of doing according to the utility model all should be within protection range of the present utility model.
Claims (4)
1. waterproofing type copper shield railway meter shaft cable, it is characterized in that: it comprises cable core, be coated on the outer sheath of cable core, described cable core comprises at least one line group, each line group comprises a plurality of single lines, wrapped bundle yarn in a plurality of single line peripheries, each single line is by conductor, the insulating barrier that is coated on the conductor periphery is formed, described sheath comprises PET band lapping layer from the inside to the outside successively, the waterstop lapping layer, the vertical bag of copper strips screen, the polyethylene bonding sheath, the wrapped armour in galvanized steel strip gap, the polyethylene oversheath also is filled with petroleum jelly between the cable core in described PET band lapping layer.
2. waterproofing type copper shield railway meter shaft cable according to claim 1 is characterized in that: be close to the described waterstop lapping layer outside and also be provided with the earial drainage lead.
3. waterproofing type copper shield railway meter shaft cable according to claim 1 and 2, it is characterized in that: the insulating barrier on the described single line is solid polyethylene insulation material.
4. waterproofing type copper shield railway meter shaft cable according to claim 1 is characterized in that: described line group comprises at least one low frequency line group and at least one signal line group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200855196U CN202013762U (en) | 2011-03-28 | 2011-03-28 | Water-resisting type copper-shielding railroad axle counting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200855196U CN202013762U (en) | 2011-03-28 | 2011-03-28 | Water-resisting type copper-shielding railroad axle counting cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013762U true CN202013762U (en) | 2011-10-19 |
Family
ID=44784376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200855196U Expired - Lifetime CN202013762U (en) | 2011-03-28 | 2011-03-28 | Water-resisting type copper-shielding railroad axle counting cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013762U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800414A (en) * | 2012-08-14 | 2012-11-28 | 江苏通鼎光电科技有限公司 | Inner shielding communication cable |
| CN104036872A (en) * | 2014-03-28 | 2014-09-10 | 江苏通鼎光电科技有限公司 | Railway digital signal axle counter cable of train |
| CN104157363A (en) * | 2014-09-17 | 2014-11-19 | 安徽顺驰电缆有限公司 | Cable for use in track traffic |
| CN104376905A (en) * | 2014-11-18 | 2015-02-25 | 中天日立射频电缆有限公司 | Axle counting cable used for urban mass transit and manufacturing method thereof |
-
2011
- 2011-03-28 CN CN2011200855196U patent/CN202013762U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800414A (en) * | 2012-08-14 | 2012-11-28 | 江苏通鼎光电科技有限公司 | Inner shielding communication cable |
| CN104036872A (en) * | 2014-03-28 | 2014-09-10 | 江苏通鼎光电科技有限公司 | Railway digital signal axle counter cable of train |
| CN104157363A (en) * | 2014-09-17 | 2014-11-19 | 安徽顺驰电缆有限公司 | Cable for use in track traffic |
| CN104376905A (en) * | 2014-11-18 | 2015-02-25 | 中天日立射频电缆有限公司 | Axle counting cable used for urban mass transit and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |
|
| CX01 | Expiry of patent term |