CN206471151U - A kind of multicore fire resisting coaxial cable - Google Patents
A kind of multicore fire resisting coaxial cable Download PDFInfo
- Publication number
- CN206471151U CN206471151U CN201720097821.0U CN201720097821U CN206471151U CN 206471151 U CN206471151 U CN 206471151U CN 201720097821 U CN201720097821 U CN 201720097821U CN 206471151 U CN206471151 U CN 206471151U
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- China
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- cable core
- cable
- mica tape
- coaxial cable
- screen layer
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Abstract
The utility model is related to a kind of multicore fire resisting coaxial cable, belongs to communication equipment coaxial cable technology field.It includes the sheath of cable core and parcel cable core that many rhizospheres are arranged around central prosthesis, and every cable core includes inner wire, insulating barrier, screen layer and outer jacket successively from inside to outside, and the central prosthesis are resin；Gasket for packing is filled between the cable core and sheath；Mica tape one is provided between the insulating barrier and screen layer of the cable core, mica tape two is provided between the screen layer and outer jacket.Flexural rigidity of the present utility model is low, bends good endurance, and pliability is high, installs laying simple and convenient；Good flame resistance, can effectively prevent cable from being burnt out quickly and cause later stage rescue work to be delayed when occurring fire.
Description
Technical field
The utility model is related to a kind of multicore fire resisting coaxial cable, belongs to communication equipment coaxial cable technology field.
Background technology
Existing coaxial cable is usually single structure, and its structure is followed successively by center conductor, insulating barrier, shielding from the inside to the outside
Layer and restrictive coating.In use, when multiway cable is parallel, it is necessary to respectively unwrapping wire, be connected respectively with connector, not only pacify
Troublesome poeration is filled, and many parallel cables are difficult to butt joint when being attached with connector and effectively sealed, it is impossible to fit
The requirement that outdoor should be used.
A kind of existing multicore coaxial cable structure being coated on many single core coaxial cables in one external sheath layer, it is tied
Structure is, in quincunx arrangement, one to be coated again in outermost by many single core coaxial cables around a cylindrical central prosthesis
Layer external sheath layer.Although the multicore coaxial cable of this structure can simplify the laying of cable, also exist in its work progress
It is not enough：Central prosthesis typically use plastic material, and its intensity is high so that be difficult continuously shaped in manufacturing process, add system
Difficulty is made, fracture is also easy in use, the quality of whole cable product is have impact on；Multicore cable is often for building
In thing, when fire occurs for building, the clutch of building is withdrawn in personnel, it is still desirable to closed-circuit television or monitoring system
Etc. circuit system holding work, but existing cable fire poor flame retardant properties, once catch fire it is unexpected occur, closed-circuit television or prison
Viewing system is with regard to failure, it is impossible to protects life or guides fire-fighting work.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provide a kind of laying it is convenient,
The good multicore fire resisting coaxial cable of fire resistance.
The technical scheme in the invention for solving the above technical problem is：A kind of multicore fire resisting coaxial cable, including it is many
Cable core and the sheath of parcel cable core that rhizosphere is arranged around central prosthesis, every cable core include inner wire, insulation successively from inside to outside
Layer, screen layer and outer jacket, the central prosthesis are resin；Gasket for packing is filled between the cable core and sheath；The cable core
Insulating barrier and screen layer between be provided with mica tape one, between the screen layer and outer jacket be provided with mica tape two.
, can be curved suffered by absorbing cable by deforming when cable bend is arranged using resin as central prosthesis
Bent pressure, effectively improves the pliability of cable.Mica tape one and mica tape two have anti-flammability, and fire is occurring for duplicate protection
When can effectively to cable carry out flameproof protection.
Further, the central prosthesis are embedded with wire, can strengthen the overall bending durability of cable.
Further, it is additionally provided with polyethylene cover between the inner wire and insulating barrier of the cable core.Polyethylene cover
, with regard to fusible formation fluid layer when temperature is also no very high, it can be completely encapsulated in early stage of catching fire outside inner wire, it is right
Inner wire carries out a comprehensively protection, while giving the space of one linear deformation of inner wire, improves cable information biography
The integrality and continuity passed.
Further, the mica tape one is synthetic mica tape, and the mica tape two is gold mica tape.Synthetic mica tape hinders
Fuel efficiency fruit is good, but cost is high, is protected as the internal layer of cable；Gold mica tape flame retardant effect is general, but cost is low, is used as electricity
The outer layer protection of cable, both combine, while good flame retardation effect, are of relatively low cost, and collocation is reasonable.
The utility model compared with prior art, with advantages below and effect：Flexural rigidity of the present utility model is low, curved
Bent good endurance, pliability is high, installs laying simple and convenient；Good flame resistance, cable can be effectively prevented when occurring fire
Burnt out quickly and cause later stage rescue work to be delayed.
Brief description of the drawings
Fig. 1 is the utility model cross-section of cable structural representation.
Fig. 2 is the utility model cable core cross-section structural representation.
In accompanying drawing：Prosthese centered on 1,2 be cable core, and 3 be sheath, and 4 be wire, and 5 be gasket for packing, and 6 be inner wire, and 7 are
Polyethylene cover, 8 be insulating barrier, and 9 be mica tape one, and 10 be screen layer, and 11 be mica tape two, and 12 be outer jacket.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Referring to Fig. 1-Fig. 2, the present embodiment includes the sheath of cable core 2 and parcel cable core that five rhizospheres are arranged around central prosthesis 1
3。
Central prosthesis 1 are the silicone tube shape being made up of the silicones of 50 degree of Shore (A) hardness.Central prosthesis 1 are embedded with metal
Silk 4, can strengthen the overall bending durability of cable.
Full gasket for packing 5 is filled between cable core and sheath.Gasket for packing 5 is to open net polypropylene tearing material using non-, so
The heat absorption capacity coefficient of material can be reduced.
Sheath 3 is made up of wear-resisting type polythene material, and thickness is averagely not less than 4.5 millimeters, and the thickness thinnest part of sheath 3 is not small
In 4.5 millimeters.The anti-wear performance of cable is so improved, is reduced because cable cover(ing) 3 is made by point-like external force and planar external force
Into the various security incidents caused by breakage.
Every cable core 2 includes inner wire 6, polyethylene cover 7, insulating barrier 8, mica tape 1, shielding successively from inside to outside
Layer 10, mica tape 2 11 and outer jacket 12.Wherein, mica tape 1 is synthetic mica tape, and mica tape 2 11 is gold mica tape.
Polyethylene cover 7 can catch fire in early days, with regard to fusible formation fluid layer when temperature is also no very high,
It is completely encapsulated in outside inner wire 6, inner conductors 6 carry out a comprehensively protection, while giving inner wire 6 one linear deformations
Space, improve cable information transmission integrality and continuity.Synthetic mica tape good flame retardation effect, but cost is high, makees
Protected for the internal layer of cable；Gold mica tape flame retardant effect is general, but cost is low, and as the outer layer protection of cable, both combine,
While good flame retardation effect, it is of relatively low cost, collocation is reasonable, duplicate protection, can be effectively to cable when occurring fire
Flameproof protection is carried out, while reducing loss to the full extent.
Although the utility model is disclosed as above with embodiment, it is not limited to protection model of the present utility model
Enclose, any technical staff for being familiar with this technology is not departing from the change made in spirit and scope of the present utility model and profit
Decorations, all should belong to protection domain of the present utility model.
Claims (4)
1. a kind of multicore fire resisting coaxial cable, include the sheath of the cable core arranged around central prosthesis of many rhizospheres and parcel cable core, often
Root cable core includes inner wire, insulating barrier, screen layer and outer jacket successively from inside to outside, it is characterised in that：The central prosthesis are
Resin；Gasket for packing is filled between the cable core and sheath；Mica tape one is provided between the insulating barrier and screen layer of the cable core,
Mica tape two is provided between the screen layer and outer jacket.
2. multicore fire resisting coaxial cable according to claim 1, it is characterised in that：The central prosthesis are embedded with metal
Silk.
3. multicore fire resisting coaxial cable according to claim 1, it is characterised in that：The inner wire and insulating barrier of the cable core
Between be additionally provided with polyethylene cover.
4. multicore fire resisting coaxial cable according to claim 1, it is characterised in that：The mica tape one is synthetic mica
Band, the mica tape two is gold mica tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720097821.0U CN206471151U (en) | 2017-01-23 | 2017-01-23 | A kind of multicore fire resisting coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720097821.0U CN206471151U (en) | 2017-01-23 | 2017-01-23 | A kind of multicore fire resisting coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206471151U true CN206471151U (en) | 2017-09-05 |
Family
ID=59703881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720097821.0U Active CN206471151U (en) | 2017-01-23 | 2017-01-23 | A kind of multicore fire resisting coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206471151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11152138B2 (en) | 2017-09-08 | 2021-10-19 | Nokia Shanghai Bell Co., Ltd. | Fire rated radio frequency cable |
-
2017
- 2017-01-23 CN CN201720097821.0U patent/CN206471151U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11152138B2 (en) | 2017-09-08 | 2021-10-19 | Nokia Shanghai Bell Co., Ltd. | Fire rated radio frequency cable |
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