CN204760088U - Cable - Google Patents
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- Publication number
- CN204760088U CN204760088U CN201520527023.8U CN201520527023U CN204760088U CN 204760088 U CN204760088 U CN 204760088U CN 201520527023 U CN201520527023 U CN 201520527023U CN 204760088 U CN204760088 U CN 204760088U
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- China
- Prior art keywords
- cable
- resistance
- compression layer
- restrictive coating
- layer
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Abstract
The utility model discloses a cable belongs to electric wire cable field, aims at providing a tensile strength and the better cable of compressive property. Its technical scheme main points are: a cable, includes concentric conductor, insulating layer and restrictive coating, be provided with resist compression layer in the restrictive coating, the resist compression layer cladding is on the insulating layer, the last recess that supplies the insulating layer embedding that is provided with of resist compression layer, the insulating layer material is silicon rubber, and resist compression layer's material is polytetrafluoroethylene, be provided with the strengthening rib in the middle of the resist compression layer, the strengthening rib is the alloy -steel wire, the restrictive coating material is not for there being steamed low cigarette crosslinked flame retardant polyolefin. Make cable reach better compressive property and tensile strength increase cable's life.
Description
Technical field
The utility model relates to electric wire field, particularly a kind of cable.
Background technology
Cable is widely used in electric power, communications, along with the development and for the purpose of safety of science and technology, present cable arrange-line arrange all by cable arrangements in underground, the cable being embedded in underground can be subject to steam, destructive power from the pressure of ground weight and earthquake etc.At present, existing cable is made up of restrictive coating, insulating barrier and concentric conductor substantially.Its structure is that restrictive coating is on the insulating layer coated, and the inner side of insulating barrier is provided with concentric conductor.The pull resistance of existing cable comes from the of concentric conductor own substantially, if when running into larger pressure or earthquake, the pull resistance depending merely on concentric conductor itself is far from being enough.There is larger gap between concentric conductor and cause discontinuity, make when concentric conductor is under pressure, its effect is each other only on a point, make stressed in concentrating, cause whole concentric conductor to be squeezed, can there is insulating barrier cracking in the concentric conductor of extrusion in Long-Time Service process, compressive property is poor, compressive property difference easily causes the breakage of cable, and the tension of cable and compression strength can cause greatly reduce the useful life of cable not.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of tensile property and the better cable of compressive property.
For achieving the above object, the utility model provides following technical scheme: a kind of cable, comprise concentric conductor, insulating barrier and restrictive coating, resistance to compression layer is provided with in described restrictive coating, described resistance to compression layer is on the insulating layer coated, described resistance to compression layer is provided with the groove embedded for insulating barrier, described insulating layer material is silicon rubber, the material of resistance to compression layer is polytetrafluoroethylene, reinforcement is provided with in the middle of described resistance to compression layer, described reinforcement is alloy-steel wire, and described jacket layer material is low smoke, zero halogen cross-linking flame-retardant polyolefin.
By adopting technique scheme, reinforcement is provided with in resistance to compression layer, can be under pressure or earthquake time, the resistance to tension that the drawing-resistant function that reinforcement plays can strengthen cable greatly prevents cable breakage, resistance to compression layer is provided with the groove embedded for insulating barrier, insulating barrier is embedded in groove, groove inner wall is contacted completely with insulating barrier, the concentric conductor embedded and insulating barrier add the intensity of resistance to compression layer, thus reach average stressed and best resistance to compression effect, strengthen the useful life of cable.
The utility model is set to further: the cross sectional shape of described resistance to compression layer is for circular.
By adopting technique scheme, the cross sectional shape of resistance to compression layer is circular, and circle can make the power be subject to be distributed to whole resistance to compression layer uniformly, thus the effect reaching uniform stressed plays better resistance to compression effect.
The utility model is set to further: be provided with watertight composition between described restrictive coating and insulating barrier.
By adopting technique scheme, described watertight composition can prevent the moisture penetration in soil from entering cable thus the short circuit causing cable with on firely play better protective effect, also enhance the crushing resistance of cable from one side.
The utility model is set to further: described watertight composition is made up of epoxy resin.
By adopting technique scheme, described watertight composition is made up of epoxy resin, is embedded in soil at watertight composition, because its epoxy resin has good anti-leakage performance, make watertight composition can well prevent moisture penetration from entering into cable inside, thus ensure that short circuit and on fire does not appear in cable; Due to its epoxy resin, also to have intensity high, makes watertight composition also have better resistance to compression effect.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the utility model cable.
Reference numeral: 1, restrictive coating; 2, watertight composition; 3, insulating barrier; 4, concentric conductor; 5, resistance to compression layer; 6, reinforcement; 7, groove.
Embodiment
With reference to Fig. 1, the utility model exemplary fiber optic cable is described further.
A kind of cable, comprise concentric conductor 4, insulating barrier 3 and restrictive coating 1, resistance to compression layer 5 is provided with in described restrictive coating 1, described resistance to compression layer 5 is on the insulating layer 3 coated, and described resistance to compression layer 5 is provided with the groove 7 embedded for insulating barrier 3, described insulating barrier 3 material is silicon rubber, the material of resistance to compression layer 5 is polytetrafluoroethylene, be provided with reinforcement 6 in the middle of described resistance to compression layer 5, described reinforcement 6 is alloy-steel wire, and described restrictive coating 1 material is low smoke, zero halogen cross-linking flame-retardant polyolefin.
Described restrictive coating 1 material low smoke, zero halogen cross-linking flame-retardant polyolefin is environment-protecting asepsis fire proofing, good mechanical property, and tensile strength is high, the feature that anti-pressure and abrasion-proof significantly improves, under the prerequisite ensureing result of use originally, reach again environment friendly and pollution-free effect.
Described reinforcement 6 material alloys steel wire has higher hardness, pull resistance, resistance to wear and fatigue performance, good toughness and certain resistance to corrosion.
Described insulating barrier 3 material silicon rubber have be not afraid of high temperature, severe cold also has good electrical insulating property, oxidative resistance, ageing resistance and the feature such as mildew resistance and chemical stability.
Described resistance to compression layer 5 material polytetrafluoroethylene is typical soft and weak polymer, large intermolecular attractive interaction is less, rigidity, hardness, intensity are all less, can not be out of shape under stress long term, soft effect still can be kept, electrical insulating property, oxidative resistance, ageing resistance and mildew resistance and chemical stability etc. when high temperature, severe cold.
Described restrictive coating 1 is wrapped in watertight composition 2, and watertight composition 2 is wrapped in insulating barrier 3, and insulating barrier 3 is coated on concentric conductor 4, and insulating barrier embeds the groove 7 li at resistance to compression layer 5 place, and resistance to compression layer 5 is coated on reinforcement 6.
Described cable is when the geological movement run in soil and hard sharp stone, because the material low smoke, zero halogen cross-linking flame-retardant polyolefin of its restrictive coating has good mechanical performance and anti-abrasion resistance, make restrictive coating cable can better be prevented to be scratched and break, play better protected effect; Because its low smoke, zero halogen cross-linking flame-retardant polyolefin also has environment friendly and pollution-free effect, cable is made not cause secondary pollution when reclaiming, cable is embedded in soil, material epoxy resin due to its watertight composition has good anti-leakage performance, make watertight composition can well prevent moisture penetration from entering into cable inside, thus ensure that short circuit and on fire does not appear in cable; Because its epoxy resin also has the high feature of intensity, watertight composition is made also to have better resistance to compression effect, cable is when being subject to the pressure from soil and ground, what resistance to compression layer can make the pressure uniform be subject to is distributed to whole resistance to compression layer, thus reach better resistance to compression effect, reinforcement has good resistance to tension, and cable, under the prerequisite possessing better water resistance, tensile property and compressive property, greatly strengthen the useful life of cable.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. a cable, comprise concentric conductor, insulating barrier and restrictive coating, it is characterized in that: in described restrictive coating, be provided with resistance to compression layer, described resistance to compression layer is on the insulating layer coated, and described resistance to compression layer is provided with the groove embedded for insulating barrier, described insulating layer material is silicon rubber, the material of resistance to compression layer is polytetrafluoroethylene, be provided with reinforcement in the middle of described resistance to compression layer, described reinforcement is alloy-steel wire, and described jacket layer material is low smoke, zero halogen cross-linking flame-retardant polyolefin.
2. a kind of cable according to claim 1, is characterized in that: the cross sectional shape of described resistance to compression layer is for circular.
3. a kind of cable according to claim 1, is characterized in that: be provided with watertight composition between described restrictive coating and insulating barrier.
4. a kind of cable according to claim 3, is characterized in that: described watertight composition is made up of epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520527023.8U CN204760088U (en) | 2015-07-20 | 2015-07-20 | Cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520527023.8U CN204760088U (en) | 2015-07-20 | 2015-07-20 | Cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204760088U true CN204760088U (en) | 2015-11-11 |
Family
ID=54474770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520527023.8U Expired - Fee Related CN204760088U (en) | 2015-07-20 | 2015-07-20 | Cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204760088U (en) |
-
2015
- 2015-07-20 CN CN201520527023.8U patent/CN204760088U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20190720 |