CN208655271U - A kind of flame-retardant pull tension long haul communication instrument signal cable - Google Patents
A kind of flame-retardant pull tension long haul communication instrument signal cable Download PDFInfo
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- CN208655271U CN208655271U CN201820768560.5U CN201820768560U CN208655271U CN 208655271 U CN208655271 U CN 208655271U CN 201820768560 U CN201820768560 U CN 201820768560U CN 208655271 U CN208655271 U CN 208655271U
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Abstract
The utility model discloses a kind of flame-retardant pull tension long haul communication instrument signal cables, cable core includes strengthening core and multiple signal line groups, strengthening core is located in the middle part of the cable core, multiple signal line groups are arranged around strengthening core, each signal line group includes two signal wires and the sub-shield that is coated on outside two signal wires, total wrapping layer is coated on outside the cable core, and total shielded layer is coated on outside total wrapping layer, and oversheath is coated on outside total shielded layer.Pass through the flame-retardant pull tension long haul communication instrument signal cable of above-mentioned optimization design; by the way that multiple signal line groups are arranged around strengthening core; cable forced position is set to be located at cable center; it not will lead to signal wire and generate situations such as uneven stress causes signal wire to be broken; effective protection signal wire; to improve the towing intensity of cable, so that cable has good tensile property.
Description
Technical field
The utility model relates to field of cable technology more particularly to a kind of flame-retardant pull tension long haul communication instrument signal electricity
Cable.
Background technique
Cable is usually by several or several groups of conducting wires (every group at least two) are twisted, between every group of conducting wire mutually absolutely
Edge, and be often twisted into around a center, entire outside is surrounded by the coating of high-insulation.Cable has interior energization, external insulation
Feature.In daily life, present cable is in cable cabling using more enhancing structure to enhance its pull resistance
By aramid fiber, rope made of hemp etc. and the twisted circular configuration as an entirety of insulated wire cores, or in the side of oversheath or two
Side uses the enhancing structure of wirerope.This above-mentioned class formation respectively has superiority and inferiority, and ideal state is not achieved when in use.Use fiber crops
The construction of cable of rope and fiber, it is good using the intensity of steel wire to be far from intensity, also poorer than other on the service life.Use steel
The intensity of silk is good, but in use due to the poor in flexibility of steel wire, will lead between each insulated wire cores of cable core by
Power is uneven, and the disconnected core of insulated wire cores is caused to happen.
Utility model content
To solve technical problem present in background technique, the utility model proposes a kind of flame-retardant pull tension long haul communication instrument
Table signal cable.
The utility model proposes a kind of flame-retardant pull tension long haul communication instrument signal cable, comprising: cable core, wrapping layer,
Total shielded layer, oversheath；
Cable core includes strengthening core and multiple signal line groups, and strengthening core is located in the middle part of the cable core, and multiple signal line groups surround
Strengthening core arrangement, each signal line group include two signal wires and the sub-shield that is coated on outside two signal wires；
Total wrapping layer is coated on outside the cable core, and total shielded layer is coated on outside total wrapping layer, and oversheath is coated on always
Outside shielded layer.
Preferably, packing material is filled in cable core.
Preferably, every signal wire includes the conductor for being located at middle part, the inner insulating layer being coated on outside conductor and is coated on
External insulation layer outside inner insulating layer.
Preferably, the inner insulating layer is made of polyethylene foamed insulating materials, and the external insulation layer uses polyethylene
Insulating materials is made.
Preferably, sub-shield is coated using aluminium foil.
Preferably, tinned copper wire drainage thread is equipped with inside sub-shield.
Preferably, total shielded layer is woven using tinned copper wire.
Preferably, oversheath is made of flame-proof polyvinyl chloride.
Preferably, strengthening core is twisted using finer wire.
In the utility model, the flame-retardant pull tension long haul communication instrument signal cable proposed, cable core include strengthening core and
Multiple signal line groups, strengthening core are located in the middle part of the cable core, and multiple signal line groups are arranged around strengthening core, each signal line group packet
The sub-shield for including two signal wires and being coated on outside two signal wires, total wrapping layer are coated on outside the cable core, total to shield
It covers layer to be coated on outside total wrapping layer, oversheath is coated on outside total shielded layer.Flame-retardant pull tension by above-mentioned optimization design is long
Distance communication instrument signal cable makes cable forced position be located at cable by the way that multiple signal line groups are arranged around strengthening core
Center not will lead to signal wire and generate situations such as uneven stress causes signal wire to be broken, effective protection signal wire, thus
The towing intensity of cable is improved, so that cable has good tensile property.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of flame-retardant pull tension long haul communication instrument signal cable structural schematic diagram.
Specific embodiment
As shown in FIG. 1, FIG. 1 is the utility model proposes a kind of flame-retardant pull tension long haul communication instrument signal cable knot
Structure schematic diagram.
Referring to Fig.1, the utility model proposes a kind of flame-retardant pull tension long haul communication instrument signal cable, comprising: cable core,
Wrapping layer 1, total shielded layer 2, oversheath 3；
Cable core includes strengthening core 8 and multiple signal line groups, and strengthening core 8 is located in the middle part of the cable core, and multiple signal line groups are enclosed
It is arranged around strengthening core 8, each signal line group includes two signal wires and the sub-shield 4 that is coated on outside two signal wires；
Total wrapping layer 1 is coated on outside the cable core, and total shielded layer 2 is coated on outside total wrapping layer 1, and oversheath 3 coats
Outside total shielded layer 2.
In the present embodiment, the flame-retardant pull tension long haul communication instrument signal cable proposed, cable core include strengthening core and
Multiple signal line groups, strengthening core are located in the middle part of the cable core, and multiple signal line groups are arranged around strengthening core, each signal line group packet
The sub-shield for including two signal wires and being coated on outside two signal wires, total wrapping layer are coated on outside the cable core, total to shield
It covers layer to be coated on outside total wrapping layer, oversheath is coated on outside total shielded layer.Flame-retardant pull tension by above-mentioned optimization design is long
Distance communication instrument signal cable makes cable forced position be located at cable by the way that multiple signal line groups are arranged around strengthening core
Center not will lead to signal wire and generate situations such as uneven stress causes signal wire to be broken, effective protection signal wire, thus
The towing intensity of cable is improved, so that cable has good tensile property.
In a specific embodiment, packing material 9 is filled between cable core is interior, packing material and strengthening core, which are matched, is combined into signal wire
Protection is provided；In the specific choice mode of packing material, cable core fills the rounding that flame resistant filler rope guarantees cable core.
In the specific design method of signal wire, every signal wire includes the conductor 5 for being located at middle part, is coated on outside conductor 5
The inner insulating layer 6 in portion and the external insulation layer 7 being coated on outside inner insulating layer 6, double hyer insulation guarantee insulating reliability.Have in conductor
In body selection, conductor is twisted by internal stranded copper wire, and copper wire is directly combined in regular twisted mode, guarantees the soft of cable
Soft energy, and be also most stable of layout type, external force is difficult to change the layout of the combination between them.
In further specific design method, the inner insulating layer 6 is made of polyethylene foamed insulating materials, described outer
Insulating layer 7 is made of polyethylene insulation material；Double hyer insulation uses internal foamed insulation, external polyethylene double hyer insulation one
Molding, while guaranteeing insulating properties and the reliability with conductor ining conjunction with, and insulation soft pliable is bent, can make insulated wire cores softness, no
Embrittlement hardens, and has lower capacitor.
In the specific design method of sub-shield, sub-shield 4 is coated using aluminium foil；Further, separated-shielding
4 inside of layer is equipped with tinned copper wire drainage thread；In the specific design method of total shielded layer, total shielded layer 2 is compiled using tinned copper wire
It knits；Such shielding form can play the role of shielding external electromagnetic waves, and protection internal signal transmission is more stable, no
It is disturbed, which ensure that cable can be anti-interference, and tinned copper wire has the effect of preventing copper wire from aoxidizing simultaneously.
In the specific design method of strengthening core, strengthening core 8 is twisted using finer wire；Using centre wirerope
3 are used as stiffener, guarantee that the excellent tensile property of cable, the design not only ensure that the flexibility of cable, also ensure
The towing intensity of cable, is not easily broken inner conductor.
In other specific embodiments, oversheath 3 is made of flame-proof polyvinyl chloride, has the spies such as resist bending, fire-retardant
Different performance.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (9)
1. a kind of flame-retardant pull tension long haul communication instrument signal cable characterized by comprising cable core, wrapping layer (1), total screen
Cover layer (2), oversheath (3)；
Cable core includes strengthening core (8) and multiple signal line groups, and strengthening core (8) is located in the middle part of the cable core, and multiple signal line groups are enclosed
It is arranged around strengthening core (8), each signal line group includes two signal wires and the sub-shield that is coated on outside two signal wires
(4)；
Total wrapping layer (1) is coated on outside the cable core, and total shielded layer (2) is coated on total wrapping layer (1) outside, oversheath (3)
It is external to be coated on total shielded layer (2).
2. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that in the cable core
Filled with packing material (9).
3. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that every signal wire
Including being located at the conductor (5) at middle part, being coated on the external inner insulating layer (6) of conductor (5) and being coated on inner insulating layer (6) outside
External insulation layer (7).
4. flame-retardant pull tension long haul communication instrument signal cable according to claim 3, which is characterized in that the interior insulation
Layer (6) is made of polyethylene foamed insulating materials, and the external insulation layer (7) is made of polyethylene insulation material.
5. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that sub-shield
(4) it is coated using aluminium foil.
6. flame-retardant pull tension long haul communication instrument signal cable according to claim 5, which is characterized in that sub-shield
(4) internal to be equipped with tinned copper wire drainage thread.
7. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that total shielded layer
(2) it is woven using tinned copper wire.
8. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that oversheath (3)
It is made of flame-proof polyvinyl chloride.
9. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that strengthening core (8)
It is twisted using finer wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768560.5U CN208655271U (en) | 2018-05-22 | 2018-05-22 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820768560.5U CN208655271U (en) | 2018-05-22 | 2018-05-22 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
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| CN208655271U true CN208655271U (en) | 2019-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695019A (en) * | 2018-05-22 | 2018-10-23 | 安徽天康(集团)股份有限公司 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
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2018
- 2018-05-22 CN CN201820768560.5U patent/CN208655271U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695019A (en) * | 2018-05-22 | 2018-10-23 | 安徽天康(集团)股份有限公司 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
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