CN220085709U - High shielding traffic signal cable - Google Patents
High shielding traffic signal cable Download PDFInfo
- Publication number
- CN220085709U CN220085709U CN202320062716.9U CN202320062716U CN220085709U CN 220085709 U CN220085709 U CN 220085709U CN 202320062716 U CN202320062716 U CN 202320062716U CN 220085709 U CN220085709 U CN 220085709U
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- CN
- China
- Prior art keywords
- traffic signal
- signal cable
- shielding
- layer
- parting bead
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- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 230000007935 neutral effect Effects 0.000 claims abstract description 8
- 239000003063 flame retardant Substances 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 33
- 239000011324 bead Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000009941 weaving Methods 0.000 abstract description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 238000005192 partition Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 11
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a high-shielding traffic signal cable, which belongs to the technical field of cables and comprises a halogen-free low-smoke flame-retardant outer sheath, wherein a shielding layer is arranged on the inner side of the outer sheath, the shielding layer is of a metal flat wire weaving structure, lead ends are arranged on the outer sheath at intervals, the inner sides of the lead ends are electrically connected with the shielding layer, the lead ends are of metal wire weaving structures and are flat, connecting pieces are arranged at the outer ends, a heat collecting sleeve is arranged on the outer sides of the lead ends, the exposed parts of the lead ends on the outer sheath are bonded and sealed at the outer wall of the outer sheath through the heat collecting sleeve, an insulating layer and a traction layer are arranged on the inner sides of the shielding layer, and partition strips are arranged on the inner sides of the insulating layer and divide an inner cavity into a plurality of neutral gears.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a high-shielding traffic signal cable.
Background
Because in urban rail transit, such as subway systems or inter-city railway systems, the space is relatively closed, high requirements are put on fire safety, meanwhile, power transmission, communication, video transmission, digital transmission, electric control and the like used in the system are carried out by bundling more cables, in the practical application process, the installation is complicated, the occupied space of a plurality of cables corresponding to different functions is extremely large, the protection requirements are very strict, and most importantly, the cables with different functions can generate electromagnetic interference in the working process, so that equipment operation faults are caused.
Disclosure of Invention
The utility model aims to provide a high-shielding traffic signal cable so as to improve the integration degree and shielding effectiveness of the track traffic signal cable and realize accurate transmission of signals.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the utility model provides a high shielding traffic signal cable, includes the fire-retardant oversheath of halogen-free low cigarette, the inboard of oversheath is provided with the shielding layer, the shielding layer is metal flat wire braided structure, and the interval arrangement has the lead wire end on the oversheath, lead wire end inboard and shielding layer electrical connection, the lead wire end is metal wire braided structure to become the platykurtic, the outer end is equipped with the connection piece, the heat-collecting sleeve has been arranged in the lead wire end outside, the heat-collecting sleeve seals the outer wall department at the oversheath with the laminating of the exposed part of lead wire end at the oversheath, insulating layer and traction layer are installed to the shielding layer inboard, the insulating layer inboard is provided with the parting bead, just the parting bead separates the inner chamber into a plurality of neutral gear.
Further, the number of neutral gears is four, and a power transmission unit, a digital transmission unit, a video transmission unit and an electrical control unit are respectively arranged.
Further, the lead terminal is a copper wire braided structure.
Furthermore, the parting bead is made of insulating rubber, and the cross section of the parting bead is of an X-shaped structure.
Furthermore, the inner wall of the insulating layer and the side surface of the parting bead end are welded and fixed.
Further, an insulating inner sheath is extruded and arranged at the center of the parting bead.
Further, the traction layer is coated in the middle of the insulating layer and is in a woven net structure.
Further, adjacent lead terminals are spaced apart by a distance of 15 to 25 meters.
Compared with the prior art, the utility model has the beneficial effects that:
according to the scheme, through the arrangement of the four equal division bars, the power transmission unit, the digital transmission unit, the video transmission unit and the electric control unit can be effectively separated and prevented from magnetic field interference, and the power transmission unit, the digital transmission unit, the video transmission unit and the electric control unit can be laid in a bundle for a rail transit vehicle, compared with the prior art, the installation is simple, the occupied space of a plurality of cables corresponding to different functions is extremely small, and the protection is very important, because the cables with different functions can not generate electromagnetic interference in the working process, the operation safety of equipment can be ensured, and various accident probabilities are reduced;
in the scheme, the shielding layer woven by the metal flat wire is led out through the lead end, and the lead end can be connected with the shielding grounding end or the grounding connecting wire, so that the shielding efficiency of the cable is greatly improved, and the cable can be safely used in extremely crowded or high electromagnetic environments;
the high-shielding traffic signal cable is compact in structure, convenient to arrange and lay, excellent in shielding effectiveness and popularization significance, and is used as a main cable or a standby cable.
Drawings
Fig. 1 is a schematic overall structure of a preferred embodiment of the present solution.
Fig. 2 is a schematic view of an external connection structure of a lead terminal.
Fig. 3 is a schematic view of the layered structure of the cable.
Fig. 4 is a schematic cross-sectional structural arrangement of a cable.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, a high-shielding traffic signal cable comprises a halogen-free low-smoke flame-retardant outer sheath 1, wherein a shielding layer 2 is arranged on the inner side of the outer sheath 1, the shielding layer 2 is of a metal flat wire weaving structure and forms a weaving and interlacing structure, a stable shielding structure can be formed inside the shielding layer, lead ends 21 are arranged on the outer sheath 1 at intervals, the lead ends 21 are mainly of a flat copper wire weaving structure and have certain flexibility, the rear ends of the lead ends are electrically connected with the shielding layer 2, connecting pieces 22 are arranged at the outer ends of the lead ends 21, mounting holes are formed in the middle of the connecting pieces 22 and are used for being connected with a grounding end or a grounding connecting line, in an initial state, the lead ends 21 and the connecting pieces 22 are attached to the outer wall of the outer sheath 1, a heat collecting sleeve 23 is arranged on the outer side of the outer sheath 1, the heat collecting sleeve 23 is used for attaching and sealing the exposed parts of the lead ends 21 on the outer wall of the outer sheath 1, so that the whole cable has a good sealing effect, normal laying or transferring packaging operation is guaranteed, and the spacing distance between the lead ends 21 is 15 m to 25 m.
The insulation layer 3 and the traction layer 4 are arranged on the inner side of the shielding layer 2, the insulation layer 3 can play an insulation role, the traction layer 4 is coated on the middle of the insulation layer 3 and is of a woven net structure, the overall strength and traction capacity of a cable can be improved, the stability of laying or suspension arrangement can be improved when the cable is laid, the division bar 5 is arranged on the inner side of the insulation layer 3, the division bar 5 is made of insulation rubber, the cross section of the division bar is of an X-shaped structure, the inner cavity is divided into four neutral gears by the division bar 5, the inner wall of the insulation layer 3 and the end side face of the division bar 5 are welded and fixed, good insulation separation effect is achieved between the four neutral gears, meanwhile, the insulation inner sheath 50 is extruded and arranged at the center of the division bar 5, the insulation inner sheath 50 has good flexibility, the division bar 5 can deform at the position of the insulation inner sheath 50 in a certain mode when being bent and extruded, the overall deflection of the cable can be improved, pipe penetrating and lead wire operation can be facilitated, the extrusion of an inner unit can be reduced, and the stability of work can be improved.
The four neutral gears separated and insulated by the insulating layer 3 and the parting bead 5 are respectively provided with a power transmission unit 51, a digital transmission unit 52, a video transmission unit 53 and an electric control unit 54, wherein the power transmission unit 51 can provide power support for the operation of equipment, the digital transmission unit supports digital transmission structures such as a network cable or a coaxial cable, the video transmission unit 53 supports transmission of digital or analog signals such as a network cable, a coaxial cable or a video signal line, the electric control unit 54 supports transmission structures such as a network cable or a control line, and the digital transmission unit 52, the video transmission unit 53 and the electric control unit 54 are provided with shielding layers, so that interference signals generated inside can be shielded, and stability of data transmission of the interference signals can be ensured.
In summary, the arrangement of the four equal division bars can effectively separate the electric power transmission unit, the digital transmission unit, the video transmission unit and the electric control unit from each other and prevent magnetic field interference, and the electric power transmission unit, the digital transmission unit, the video transmission unit and the electric control unit can be laid in a bundle by one cable for the rail transit vehicle.
In this scheme, through outwards drawing forth the shielding layer of weaving the metal flat wire through the lead terminal, but the lead terminal shielding ground terminal or ground connection line connect, improved the shielding effectiveness of this cable greatly, can use safely in extremely crowded or high electromagnetic environment, this scheme a high shielding traffic signal cable, as main cable or reserve cable, its compact structure, it is convenient to arrange and lay, has fabulous shielding effectiveness, has fabulous popularization meaning.
Claims (8)
1. A high shielding traffic signal cable, characterized in that: including the fire-retardant oversheath of no steamed low cigarette, the inboard of oversheath is provided with the shielding layer, the shielding layer is the flat wire braided structure of metal, and the interval arrangement has the lead terminal on the oversheath, lead terminal inboard and shielding layer electrical connection, the lead terminal is the wire braided structure to become the platykurtic, the outer end is equipped with the connection piece, the heat-collecting sleeve has been arranged in the lead terminal outside, the heat-collecting sleeve seals the part laminating of the lead terminal at the outer wall department of oversheath that exposes of oversheath, insulating layer and traction layer are installed to the shielding layer inboard, the insulating layer inboard is provided with the parting bead, just the parting bead separates the inner chamber into a plurality of neutral gear.
2. A high shielding traffic signal cable according to claim 1 wherein: the neutral gear is four, and a power transmission unit, a digital transmission unit, a video transmission unit and an electrical control unit are respectively arranged.
3. A high shielding traffic signal cable according to claim 1 wherein: the lead terminal is a copper wire braided structure.
4. A high shielding traffic signal cable according to claim 1 wherein: the parting bead is made of insulating rubber, and the section of the parting bead is of an X-shaped structure.
5. The high shield traffic signal cable of claim 4, wherein: the inner wall of the insulating layer and the side face of the parting bead end are welded and fixed.
6. A high shielding traffic signal cable according to claim 1 wherein: an insulating inner sheath is extruded and arranged at the center of the parting bead.
7. A high shielding traffic signal cable according to claim 1 wherein: the traction layer is coated in the middle of the insulating layer and is in a woven reticular structure.
8. A high shielding traffic signal cable according to claim 1 wherein: the adjacent lead terminals are spaced apart by a distance of 15 to 25 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320062716.9U CN220085709U (en) | 2023-01-10 | 2023-01-10 | High shielding traffic signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320062716.9U CN220085709U (en) | 2023-01-10 | 2023-01-10 | High shielding traffic signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220085709U true CN220085709U (en) | 2023-11-24 |
Family
ID=88826836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320062716.9U Active CN220085709U (en) | 2023-01-10 | 2023-01-10 | High shielding traffic signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220085709U (en) |
-
2023
- 2023-01-10 CN CN202320062716.9U patent/CN220085709U/en active Active
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