CN2770052Y - Flexible railway internal screen digital signal cable - Google Patents
Flexible railway internal screen digital signal cable Download PDFInfo
- Publication number
- CN2770052Y CN2770052Y CN 200520025391 CN200520025391U CN2770052Y CN 2770052 Y CN2770052 Y CN 2770052Y CN 200520025391 CN200520025391 CN 200520025391 CN 200520025391 U CN200520025391 U CN 200520025391U CN 2770052 Y CN2770052 Y CN 2770052Y
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Abstract
The utility model discloses a flexible and inner-screening digital signal cable for a railway. The utility model is orderly composed of a screening quad, a filling layer, an inner protecting layer, a total screening layer and an oversheath from inside to outside, wherein the screening quad is orderly composed of a unit group, a skin-foam-skin insulating layer and an inner screening layer from inside to outside. The inner screening layer is a braiding layer of soft copper wires, and the total screening layer is a winding layer of aluminum wires. The electric property of the utility model reaches the index of an inner-screening digital signal cable of the railway. Meanwhile, soft performance of the utility model is good and the utility model is especially suited to be used for signal transmission of railway yards and rooms.
Description
Technical field
The utility model relates to the used a kind of transmission medium of railway signal system, more particularly, relates to a kind of soft type railway inner shield digital signal cable.
Background technology
Along with railway numeral track circuit closes railway signal system The application of new technique such as computer interlock, computer monitoring, the cable conductor that requirement is applied to railway signal system has the performance of higher anti-inner phase mutual interference, thereby produces the existing railway inner shield digital signal cable that adapts to new needs.The shielding quad screen of existing railway inner shield digital signal cable adopts the vertical bag of copper pipe or wrapped more, and total screen adopts aluminum pipe wrapped more, such structure causes the flexibility of cable poor, can not be fit to the use of rail yard, indoor signal transmission especially.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of soft type railway inner shield digital signal cable is provided.
The utility model soft type railway inner shield digital signal cable, be achieved by following technical proposals, constitute by shielding quad, packed layer, sheath, total screen, oversheath successively from the inside to the outside, described shielding quad is made of unit group, skin-foam-skin insulation layer, internal shield from the inside to the outside successively, described internal shield is a soft copper silk braid, and described total screen is the aluminum steel winding layer.
Unit described in the utility model group is made of the insulated wire cores of four different colours, and described insulated wire cores is made up of at least two bursts of twisted copper conductors.
Between total screen described in the utility model and the oversheath second sheath, armour can also be set.
The utility model is the following beneficial effect of tool compared with prior art:
1. the utility model conductor adopts the strands conductor, has effectively strengthened interference free performance;
2. the braiding of soft copper silk is adopted in the utility model shielding quad shielding, has overcome the weakness of vertical bag of original copper strips or wrapped flexibility difference;
3. the utility model cable always shields and adopts electrician's circle aluminum steel to be entwined, and has overcome the weakness of the wrapped flexibility difference of original aluminum pipe.
The utility model electric property reaches railway inner shield digital signal cable index, and the softness of cable is good simultaneously, is particularly suitable for rail yard, indoor signal transmission use.
Description of drawings
Fig. 1 is the utility model schematic cross-section;
Fig. 2 is the utility model shielding quad schematic cross-section.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, the utility model is made of shielding quad 1, packed layer 2, sheath 3, total screen 4, second sheath 7, armour 5, oversheath 6 from the inside to the outside successively, and present embodiment adopts the shielding quad lay configuration of three kinds of colors.As shown in Figure 2, the shielding quad is made of unit group 8, skin-foam-skin insulation layer 9, internal shield 10 from the inside to the outside successively.Constitute.Internal shield is a soft copper silk braid, and vertically in braid puts a colored belt.Total screen is entwined for electrician's circle aluminum steel.Sheath adopts and extrudes polyethylene, can indulge within it to put and tear rope.Oversheath is for extruding polyethylene or low smoke halogen-free flame-retardant polyolefin.Wherein armour is zinc-coated wire or steel-tape armouring.
The utility model unit group is made of the insulated wire cores of four different colours, its outer twining package tape, and insulated wire cores is made up of at least two bursts of twisted copper conductors.
The utility model can also omit outer second sheath that is provided with of total screen, armour.
Claims (3)
1. soft type railway inner shield digital signal cable, constitute by shielding quad, packed layer, sheath, total screen, oversheath successively from the inside to the outside, it is characterized in that, described shielding quad is made of unit group, skin-foam-skin insulation layer, internal shield from the inside to the outside successively, described internal shield is a soft copper silk braid, and described total screen is the aluminum steel winding layer.
2. soft type railway inner shield digital signal cable according to claim 1 is characterized in that described unit group is made of the insulated wire cores of four different colours, and described insulated wire cores is made up of at least two bursts of twisted copper conductors.
3. soft type railway inner shield digital signal cable according to claim 1 is characterized in that, is provided with second sheath, armour between described total screen and the oversheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520025391 CN2770052Y (en) | 2005-03-11 | 2005-03-11 | Flexible railway internal screen digital signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520025391 CN2770052Y (en) | 2005-03-11 | 2005-03-11 | Flexible railway internal screen digital signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2770052Y true CN2770052Y (en) | 2006-04-05 |
Family
ID=36691120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520025391 Expired - Fee Related CN2770052Y (en) | 2005-03-11 | 2005-03-11 | Flexible railway internal screen digital signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2770052Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871645A (en) * | 2014-02-28 | 2014-06-18 | 安徽江淮电缆集团有限公司 | Insulated flexible cable with aluminum alloy conductor cable cores |
| CN103943189A (en) * | 2014-03-25 | 2014-07-23 | 安徽华峰电缆集团有限公司 | Low-smoke zero-halogen anti-interference fireproof flexible cable |
| CN104282390A (en) * | 2014-10-21 | 2015-01-14 | 常熟市鑫华电子科技有限公司 | Vehicle-mounted communication control high-shielding composite cable |
| CN104282391A (en) * | 2014-10-21 | 2015-01-14 | 常熟市鑫华电子科技有限公司 | Vehicle-mounted communication control composite cable |
-
2005
- 2005-03-11 CN CN 200520025391 patent/CN2770052Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871645A (en) * | 2014-02-28 | 2014-06-18 | 安徽江淮电缆集团有限公司 | Insulated flexible cable with aluminum alloy conductor cable cores |
| CN103943189A (en) * | 2014-03-25 | 2014-07-23 | 安徽华峰电缆集团有限公司 | Low-smoke zero-halogen anti-interference fireproof flexible cable |
| CN104282390A (en) * | 2014-10-21 | 2015-01-14 | 常熟市鑫华电子科技有限公司 | Vehicle-mounted communication control high-shielding composite cable |
| CN104282391A (en) * | 2014-10-21 | 2015-01-14 | 常熟市鑫华电子科技有限公司 | Vehicle-mounted communication control composite cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANJIN DELTA SCIENCE AND TECHNOLOGY GROUP CO., LT Free format text: FORMER NAME: TIANJIN DELTA SCIENCE AND TECHNOLOGY GROUP CO. |
|
| CP03 | Change of name, title or address |
Address after: Tianjin City, Beijing Tianjin highway Beichen Yinhe bridge on the west side, zip code: 300400 Patentee after: Tianjin Delta Science & Technology Group Co., Ltd. Address before: Tianjin City, Beijing Tianjin highway Beichen Yinhe bridge on the west side, zip code: 300400 Patentee before: Tianjin Delta Science & Technology Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20120311 |