CN202332340U - Railway signal cable with single protective wing support - Google Patents
Railway signal cable with single protective wing support Download PDFInfo
- Publication number
- CN202332340U CN202332340U CN2011204399012U CN201120439901U CN202332340U CN 202332340 U CN202332340 U CN 202332340U CN 2011204399012 U CN2011204399012 U CN 2011204399012U CN 201120439901 U CN201120439901 U CN 201120439901U CN 202332340 U CN202332340 U CN 202332340U
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- China
- Prior art keywords
- support
- cable
- signal cable
- railway signal
- railway
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- Expired - Fee Related
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Abstract
The utility model discloses a railway signal cable with a single protective wing support. The railway signal cable with the single protective wing support comprises a cable core, insulating core wires and a sheath, and is characterized in that: the cable core consists of a plurality of transmission units which are arranged in a concentric circular way; the transmission units are support quad stars which may be coated with shielding metal layers and are formed by a plurality of insulating core wires arranged inside the support; the support is a cross-shaped support which is provided with a single protective wing; and the sheath is arranged outside the cable core and is tightly integrated with the cable core. Compared with the prior art, the railway signal cable with the single protective wing support has the advantages that: the structure is simple; the electrical performance of the railway signal cable is more stable; the mechanical strengths of insulating layers of the core wires are obviously improved; the defects and shortcomings of the conventional cables are overcome; and using requirements of railway on high safety and high performance of the signal cable can be met better.
Description
Technical field
The utility model relates to cable, Power-line technology field, specifically a kind of single flap support railway signal cable that is used for the digital signal and the inner shield digital signal of main line railway, high-speed railway and city underground.
Background technology
At present; The signal system of main line railway, high-speed railway and subway is used (inner shield) digital signal cable in a large number; The copper conductor that this cable employing diameter is 1.0mm extrudes " skin-bubble-Pi " polyolefin insulation layer outward; Process the insulation heart yearn of each color such as red, white, blue, green, and then with four insulated heart yearns through stranded formation star quad stranding group, the outer looping shielded metal layer of star quad stranding group constitutes inner shield star quad stranding group; Star quad stranding group and inner shield star quad stranding group all are BTU Basic Transmission Units of cable, and some BTU Basic Transmission Units are carried out stranded formation cable conductor.In the star quad stranding group is in the BTU Basic Transmission Unit of cable, expects red-Bai, orchid-green transmission line to complete symmetry, and like this, the electric index of cable (general>1000m) on overall length just can be consistent with even.But; The star quad stranding group structural instability of existing cable; Make and the cable laying operation process in, to the cable bending of reeling repeatedly, the external force of generation is prone to cause four heart yearn slide relative to become " ◇ " shape; And imperfect " " shape, actual each section of cable electric parameter that causes is dispersed big and index is overproof easily.In addition, inner shield star quad stranding group is because the insulation that the shielded metal band of outsourcing is prone to thrust core, and foamed insulation self mechanical strength is low in addition, usually causes cable electrical to puncture, and has increased manufacture difficulty and percent defective.
The even more serious defective that existing cable exists is; The insulating barrier of its heart yearn is polyolefine material " skin-bubble-Pi " structure through foaming; Though this structure has reduced the mutual capacitance between cable pair effectively, can better satisfy the requirement of Train Control transmission of Information, because foaming; Obviously reduced the mechanical strength of insulating barrier, the anti-compression properties of insulated wire cores is merely 600--700N/1min.Along with digital signal cable is popularized in an all-round way and widely applied at main line railway, high-speed railway; Expose the defective that the cable core insulation can not tolerate normal external force; In cable construction and regular maintenance, particularly manifest, so that breakage takes place in insulating barrier often, cause cable swinging cross or short circuit; Cause the railway signal system fault, become the maximum potential safety hazard of railway transportation.For this reason, provide a kind of line between mutual capacitance low, electric property is stable and high (inner shield) railway digital signal cable of insulating barrier mechanical strength has become an urgent demand of railway authorities.
The utility model content
The purpose of the utility model is a kind of single flap support railway signal cable that provides to the deficiency of prior art; It adopts in the cable single flap support is set; Each heart yearn placed in the support isolate effectively, protect and accurately fixing; Obviously improved the mechanical strength of cable insulation, greatly reduce line to a mutual capacitance and each line to the electric capacity conformity error and reduced line to crosstalk effect.
The concrete technical scheme that realizes the utility model purpose is: a kind of single flap support railway signal cable, comprise cable core, insulation heart yearn and sheath, and be characterized in that cable core is concentric circles setting by several transmission units and forms; Transmission unit is to be arranged on the support star quad stranding group that several insulation heart yearns constitute in the support, the outer or looping shielded metal layer of its support star quad stranding group; Support is " ten " cabinet frame that is provided with single flap, and its end face is orthogonal pair of serpentine; Sheath is arranged on the outer and cable core of cable core and tightly wraps up and be one.
Said support and cable are isometric.
The utility model compared with prior art has simple in structure; The cable electrical performance is more stable; Core insulation layer mechanical strength obviously improves, and overcome defective and deficiency that existing cable exists, satisfied high safety, high performance instructions for use that railway proposes signal cable better.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the transmission unit structural representation;
Fig. 3 implements illustration for transmission unit;
Fig. 4 is the supporting structure sketch map.
Embodiment
Consult accompanying drawing 1, the utility model comprises cable core 1, insulation heart yearn 2 and sheath 3, and cable core 1 is concentric circles setting by several transmission units 4 and forms; Transmission unit 4 is for being arranged on the support star quad stranding group that several insulation heart yearns 2 constitute in the support 5, the outer or looping shielded metal layer 7 of its support star quad stranding group; Support 5 is for being provided with " ten " cabinet frame of single flap 6, and its end face is orthogonal pair of serpentine, and support 5 is isometric with cable; It is one that sheath 3 is arranged on outer tightly the parcel with cable core 1 of cable core 1.
Consult accompanying drawing 3; Transmission unit 4 is for being arranged on the support star quad stranding group of the two couples insulation heart yearn 2 on the support 5; Support 5 is for being provided with " ten " cabinet frame of single flap 6; Its end face is orthogonal pair of serpentine, and support 5 is isometric with cable, and two pairs of insulation heart yearns 2 are fixedly installed in four spaces on single flap 6 interior " ten " cabinet frames with red, green, blue, white colour mark respectively.
Consult accompanying drawing 4; Support 5 is for being provided with " ten " cabinet frame of single flap 6; Its end face is orthogonal pair of serpentine; The effect of single flap 6 is that every insulated heart yearn 2 is stabilized in the space of support 5, prevents the insulating barrier of wire jumper and protection insulation heart yearn 2, and support 5 adopts solid macromolecular material or low foaming polymer material and isometric with cable.
The utility model is such processing and fabricating: together send into the support star quadding machine with insulation heart yearn 2 and support 5 red, white, blue, green color mark respectively with four; The support star quadding machine is placed on four insulated heart yearns 2 respectively in four spaces in the support 5 and is the transmission unit 4 of railway digital signal cable; Or looping inner shield metal level 7 backs are the transmission unit 4 of internal screening railway digital signal cable outside list 2 flaps 6 of support 5; Several transmission units 4 through stranding stranded for after having the cable core 1 of stable concentric structure setting by the cable extruder cable core 1 outerwrap sheath 3 and with cable core 1 hard-pressed bale be one, sheath 3 is plastic sheath, composite sheath and aluminium sheath.
The utility model reaches 1360--1500N/1min through the anti-compression properties of surveying insulated wire cores 2 and does not puncture; The work of finished product star quad stranding group to capacitance deviation only ± 1nF/km; It is low that the support 5 that is provided with single flap 6 has solved the insulating barrier mechanical strength that existing cable exists; Be prone to the unsettled defective of electric index and the deficiency of puncture and cable between inner shield metal level 7 and the insulation heart yearn 2, simultaneously, also omitted existing cable star quad stranding group and tied up the three-layer plastic band between yarn and shielded metal layer 7 and the heart yearn 2 outward; Thereby the utility model do not increase at the outside diameter of cable, and electric property improves greatly.
More than just the utility model being further described, is not in order to the restriction this patent, and all is that the utility model equivalence is implemented, and all should be contained within the claim scope of this patent.
Claims (2)
1. a single flap support railway signal cable comprises cable core (1), insulation heart yearn (2) and sheath (3), it is characterized in that cable core (1) is concentric circles setting by several transmission units (4) and forms; Transmission unit (4) is for being arranged on the support star quad stranding group that several insulation heart yearns (2) constitute in the support (5), the outer or looping shielded metal layer (7) of its support star quad stranding group; Support (5) is for being provided with " ten " cabinet frame of single flap (6), and its end face is orthogonal pair of serpentine; Sheath (3) is arranged on outside the cable core (1) and cable core (1) parcel is one.
2. according to the said single flap support railway signal cable of claim 1, it is characterized in that said support (5) and cable are isometric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204399012U CN202332340U (en) | 2011-11-09 | 2011-11-09 | Railway signal cable with single protective wing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204399012U CN202332340U (en) | 2011-11-09 | 2011-11-09 | Railway signal cable with single protective wing support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202332340U true CN202332340U (en) | 2012-07-11 |
Family
ID=46444312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204399012U Expired - Fee Related CN202332340U (en) | 2011-11-09 | 2011-11-09 | Railway signal cable with single protective wing support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202332340U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446579A (en) * | 2011-11-09 | 2012-05-09 | 上海汉欣电缆技术有限公司 | Railway signal cable with single-protective wing bracket |
| ES2548631A1 (en) * | 2015-05-21 | 2015-10-19 | Universidad De La Rioja | N-polar cable formed by n bare unipolar conductors and their accessories (Machine-translation by Google Translate, not legally binding) |
-
2011
- 2011-11-09 CN CN2011204399012U patent/CN202332340U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446579A (en) * | 2011-11-09 | 2012-05-09 | 上海汉欣电缆技术有限公司 | Railway signal cable with single-protective wing bracket |
| ES2548631A1 (en) * | 2015-05-21 | 2015-10-19 | Universidad De La Rioja | N-polar cable formed by n bare unipolar conductors and their accessories (Machine-translation by Google Translate, not legally binding) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141109 |
|
| EXPY | Termination of patent right or utility model |