CN215868746U - Low-smoke halogen-free flame-retardant moisture-proof cable for subway - Google Patents
Low-smoke halogen-free flame-retardant moisture-proof cable for subway Download PDFInfo
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- CN215868746U CN215868746U CN202122300712.3U CN202122300712U CN215868746U CN 215868746 U CN215868746 U CN 215868746U CN 202122300712 U CN202122300712 U CN 202122300712U CN 215868746 U CN215868746 U CN 215868746U
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Abstract
The utility model discloses a low-smoke halogen-free flame-retardant moisture-proof cable for a subway, which comprises a cable core and an outer composite layer arranged outside the cable core, wherein the cable core comprises a guide core and a low-smoke halogen-free polyolefin layer arranged outside the guide core, the outer composite layer comprises an inner insulating protective layer and a moisture-proof layer, the inner insulating protective layer is arranged outside the cable core, the moisture-proof layer is fixedly arranged outside the middle flame-retardant protective layer and the outer flame-retardant protective layer, and the outer flame-retardant protective layer is arranged outside the moisture-proof layer.
Description
Technical Field
The utility model belongs to the technical field of cables for subways, and particularly relates to a low-smoke halogen-free flame-retardant moistureproof cable for subways.
Background
A cable is an electrical energy or signal transmission device, generally made of one or more conductors insulated from each other and an outer insulating protective layer, which is a wire that transmits electrical power or information from one place to another. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.
Current subway cable structure is CN213844782U like the grant of Chinese utility model patent, because the subway is with the cable and is laid in the secret of humidity shade usually, the time has been long easily because of the water smoke that humid air produced soaks the cable, cause factors that influence subway function such as cable short circuit, and the subway of this type of structure is with the cable and do not possess fire-resistant fire prevention's measure, when catching fire because of some factor in the subway, make the cable catch fire because of the high temperature easily, thereby cause bigger dangerous accident, because of laying in the secret of humidity shade for a long time at this type of cable, it has corrosive substance for a long time to meet water etc. has, the cable outward appearance is corroded easily and exposes behind the cable core, cause the potential safety hazard easily.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a flame-retardant and moisture-proof low-smoke halogen-free cable for subways, which is simple in structure.
In order to achieve the purpose, the utility model provides the following technical scheme: subway is with fire-retardant dampproofing type cable of low smoke and zero halogen, including sinle silk and the outer composite bed of setting outside the sinle silk, the sinle silk is including leading the core and setting up the outer low smoke and zero halogen polyolefin layer of core that leads of leading, outer composite bed including connecting gradually
An inner insulating protective layer arranged outside the wire core,
the moisture-proof layer is fixedly arranged outside the middle flame-retardant protective layer,
and the outer flame-retardant protective layer is arranged outside the moisture-proof layer.
The utility model is further configured to: the external composite layer also comprises
An inner flame-retardant protective layer, the middle flame-retardant protective layer is fixedly arranged between the inner insulating protective layer and the damp-proof layer,
the middle flame-retardant protective layer is fixedly arranged between the inner flame-retardant protective layer and the damp-proof layer.
By adopting the technical scheme, the good flame-retardant and moisture-proof effects of the cable can be ensured through the cooperation of the flame retardance of the multiple layers and the moisture resistance of the one layer.
The utility model is further configured to: the moisture barrier layer is made of LLDPE material.
By adopting the technical scheme, the LLDPE material continues the advantages of the LDPE and HDPE materials, thereby ensuring the moisture-proof performance of the moisture-proof layer, and simultaneously has the advantages of high strength, good toughness, strong rigidity, heat resistance, cold resistance and the like,
the utility model is further configured to: the inner insulating protective layer is a PET protective layer.
By adopting the technical scheme, the inner insulation protective layer is the PET protective layer, so that the tensile strength of the inner insulation protective layer is ensured, and the service life of the cable is prolonged.
The utility model is further configured to: the inner flame-retardant protective layer is a brominated polystyrene protective layer, and the brominated polystyrene protective layer is fixed outside the inner insulating protective layer through an adhesive.
By adopting the technical scheme, the inner flame-retardant protective layer is the brominated polystyrene protective layer, so that the inner flame-retardant protective layer has good flame-retardant performance.
The utility model is further configured to: the middle flame-retardant protective layer is a glass fiber layer.
By adopting the technical scheme, the middle flame-retardant protective layer is the glass fiber layer, so that the good flame-retardant effect of the middle flame-retardant protective layer can be ensured.
The utility model is further configured to: the outer flame-retardant protective layer is a basalt fiber layer.
By adopting the technical scheme, the outer flame-retardant protective layer is the basalt fiber layer, so that the flame-retardant effect of the outer flame-retardant protective layer can be ensured, the wear-resistant effect of the outer flame-retardant protective layer can also be ensured, and the service life of the cable is prolonged.
The utility model is further configured to: the external composite layer also comprises
The water absorbing layer is made of hydrogel and is fixedly arranged between the moisture-proof layer and the outer flame-retardant protective layer.
Through adopting foretell technical scheme, the layer that absorbs water sets up can absorb moisture when moist, and aquogel self has good flame retardant efficiency, can further ensure the flame retardant efficiency on the layer that absorbs water after the layer that absorbs water has adsorbed water.
The utility model is further configured to: the outer flame-retardant protective layer is provided with a plurality of air holes which are uniformly distributed.
Through adopting foretell technical scheme, the setting of bleeder vent can be convenient for absorb water and the drainage on layer is ventilative to the holistic practicality of cable has been ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
reference numbers in the drawings and corresponding part names: 1-wire core, 2-inner insulating protective layer, 3-inner flame-retardant protective layer, 4-middle flame-retardant protective layer, 5-damp-proof layer, 6-outer flame-retardant protective layer, 7-water absorbing layer and 8-air vent.
Detailed Description
An embodiment of the present invention is further explained with reference to fig. 1.
Example one
The utility model provides a fire-retardant dampproofing type cable of low smoke and zero halogen for subway, includes sinle silk 1 and sets up the outer composite bed outside sinle silk 1, sinle silk 1 is including leading the core and setting up the outer low smoke and zero halogen polyolefin layer of core that leads of leading in, outer composite bed including connecting gradually
An inner insulating protective layer 2, the inner insulating protective layer 2 is arranged outside the wire core 1,
a moisture-proof layer 5, the moisture-proof layer 5 is fixedly arranged outside the middle flame-retardant protective layer 4,
and the outer flame-retardant protective layer 6 is arranged outside the moisture-proof layer 5.
Further: the external composite layer also comprises
An inner flame-retardant protective layer 3, an intermediate flame-retardant protective layer 4 is fixedly arranged between the inner insulating protective layer 2 and the moisture-proof layer 5,
and the middle flame-retardant protective layer 4 is fixedly arranged between the inner flame-retardant protective layer 3 and the moisture-proof layer 5.
The good flame-retardant and moisture-proof effects of the cable can be ensured through the cooperation of multiple flame-retardant layers and one moisture-proof layer.
Example two
Further on the basis of the first embodiment: the moisture barrier 5 is made of LLDPE material.
The advantages of LDPE and HDPE materials are continued through LLDPE materials, so that the moisture resistance of the moisture-proof layer 5 is ensured, and the moisture-proof layer has the advantages of high strength, good toughness, strong rigidity, heat resistance, cold resistance and the like,
further: the inner insulating protective layer 2 is a PET protective layer.
The inner insulating protection layer 2 is a PET protection layer, so that the tensile strength of the inner insulating protection layer 2 is ensured, and the service life of the cable is prolonged.
Further: the inner flame-retardant protective layer 3 is a brominated polystyrene protective layer, and the brominated polystyrene protective layer is fixed outside the inner insulating protective layer 2 through an adhesive.
The inner flame-retardant protective layer 3 is a brominated polystyrene protective layer, so that the inner flame-retardant protective layer 3 has good flame retardant property.
Further: the middle flame-retardant protective layer 4 is a glass fiber layer.
The middle flame-retardant protective layer 4 is a glass fiber layer, so that the good flame-retardant effect of the middle flame-retardant protective layer 4 can be ensured.
Further setting: the outer flame-retardant protective layer 6 is a basalt fiber layer.
The basalt fiber layer is adopted as the outer flame-retardant protective layer 6, so that the flame-retardant effect of the outer flame-retardant protective layer 6 can be ensured, the wear-resistant effect of the outer flame-retardant protective layer 6 can be ensured, and the service life of the cable is prolonged.
EXAMPLE III
On the basis of the second embodiment: the external composite layer also comprises
The water absorbing layer 7 is made of hydrogel and is fixedly arranged between the moisture-proof layer 5 and the outer flame-retardant protective layer 6.
The water absorbing layer 7 can absorb water when the water is wet, the hydrogel has a good flame retardant effect, and the flame retardant effect of the water absorbing layer 7 can be further ensured after the water absorbing layer 7 absorbs water.
Further: a plurality of air holes 8 which are uniformly distributed are arranged on the outer flame-retardant protective layer 6.
The water absorption layer 7 can absorb water and drain water conveniently through the arrangement of the air holes 8, so that the overall practicability of the cable is ensured.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (9)
1. Subway is with fire-retardant dampproofing type cable of low smoke and zero halogen, including sinle silk (1) and set up the outer composite bed outside sinle silk (1), characterized by: the external composite layer comprises a plurality of layers which are connected in sequence
An inner insulating protective layer (2), the inner insulating protective layer (2) is arranged outside the wire core (1),
a moisture-proof layer (5), the moisture-proof layer (5) is fixedly arranged outside the middle flame-retardant protective layer (4),
and the outer flame-retardant protective layer (6), wherein the outer flame-retardant protective layer (6) is arranged outside the moisture-proof layer (5).
2. The low-smoke halogen-free flame-retardant moisture-proof cable for the subway according to claim 1, which is characterized in that: the external composite layer also comprises
An inner flame-retardant protective layer (3), the middle flame-retardant protective layer (4) is fixedly arranged between the inner insulating protective layer (2) and the moisture-proof layer (5),
the middle flame-retardant protective layer (4) is fixedly arranged between the inner flame-retardant protective layer (3) and the moisture-proof layer (5).
3. The low-smoke halogen-free flame-retardant moisture-proof cable for the subway as claimed in claim 2, wherein: the moisture-proof layer (5) is made of LLDPE material.
4. The low-smoke halogen-free flame-retardant moisture-proof cable for the subway as claimed in claim 3, wherein: the inner insulating protective layer (2) is a PET protective layer.
5. The low-smoke halogen-free flame-retardant moisture-proof cable for the subway as claimed in claim 4, wherein: the inner flame-retardant protective layer (3) is a brominated polystyrene protective layer, and the brominated polystyrene protective layer is fixed outside the inner insulating protective layer (2) through an adhesive.
6. The low-smoke halogen-free flame-retardant moisture-proof cable for the subway as claimed in claim 5, wherein: the middle flame-retardant protective layer (4) is a glass fiber layer.
7. The low-smoke halogen-free flame-retardant moisture-proof cable for the subway as claimed in claim 6, wherein: the outer flame-retardant protective layer (6) is a basalt fiber layer.
8. The low-smoke halogen-free flame-retardant moisture-proof cable for the subway according to claim 7, wherein: the external composite layer also comprises
The water absorbing layer (7) is made of hydrogel and is fixedly arranged between the moisture-proof layer (5) and the outer flame-retardant protective layer (6).
9. The low-smoke halogen-free flame-retardant moisture-proof cable for the subway according to claim 8, wherein: a plurality of air holes (8) which are uniformly distributed are arranged on the outer flame-retardant protective layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122300712.3U CN215868746U (en) | 2021-09-22 | 2021-09-22 | Low-smoke halogen-free flame-retardant moisture-proof cable for subway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122300712.3U CN215868746U (en) | 2021-09-22 | 2021-09-22 | Low-smoke halogen-free flame-retardant moisture-proof cable for subway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215868746U true CN215868746U (en) | 2022-02-18 |
Family
ID=80256576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122300712.3U Active CN215868746U (en) | 2021-09-22 | 2021-09-22 | Low-smoke halogen-free flame-retardant moisture-proof cable for subway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215868746U (en) |
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2021
- 2021-09-22 CN CN202122300712.3U patent/CN215868746U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Low-smoke halogen-free flame retardant and moisture-proof cable for subway Effective date of registration: 20220912 Granted publication date: 20220218 Pledgee: Agricultural Bank of China (Limited by Share Ltd.) branch of Lin Hai City Pledgor: Mingpin Cable Group Co.,Ltd. Registration number: Y2022330002075 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230615 Granted publication date: 20220218 Pledgee: Agricultural Bank of China (Limited by Share Ltd.) branch of Lin Hai City Pledgor: Mingpin Cable Group Co.,Ltd. Registration number: Y2022330002075 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Low smoke zero halogen flame retardant and moisture-proof cable for subway Effective date of registration: 20230620 Granted publication date: 20220218 Pledgee: Agricultural Bank of China (Limited by Share Ltd.) branch of Lin Hai City Pledgor: Mingpin Cable Group Co.,Ltd. Registration number: Y2023330001228 |