CN218896499U - High-flame-retardance environment-friendly flexible cable for rail transit - Google Patents
High-flame-retardance environment-friendly flexible cable for rail transit Download PDFInfo
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- CN218896499U CN218896499U CN202320041448.2U CN202320041448U CN218896499U CN 218896499 U CN218896499 U CN 218896499U CN 202320041448 U CN202320041448 U CN 202320041448U CN 218896499 U CN218896499 U CN 218896499U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a high-flame-retardance environment-friendly flexible cable for rail transit, and belongs to the technical field of cables. The cable core unit comprises a copper core and an insulating layer coated outside the copper core, a filler layer is arranged outside the copper core, a shielding layer is arranged outside the filler layer, a flame-retardant layer is arranged outside the shielding layer, a plurality of annular grooves are formed in the surface of the flame-retardant layer at intervals, a flame-retardant layer is arranged outside the flame-retardant layer, basalt fiber ropes are arranged inside the flame-retardant layer, and an outer sheath is arranged outside the flame-retardant layer. According to the utility model, the surface of the flame-retardant layer is provided with the annular grooves, so that the cable can be bent along the annular grooves when being bent, and the flexibility of the cable is improved; the cable is internally provided with a fire-resistant layer and fire-resistant mud, and has high flame retardance; the flame-retardant layer is made of low-smoke halogen-free flame retardant material, and has excellent environmental protection performance.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a high-flame-retardance environment-friendly flexible cable for rail transit.
Background
In rail transit, the ground line is a laying mode with the lowest cost, and in order to ensure smooth running of urban rail transit, a special road is generally adopted to lay cables. In the prior art, the softness of the cable for track traffic is insufficient, certain difficulty exists when the cable is laid, and in addition, the flame retardant performance of the existing cable is not excellent enough, so that potential safety hazards exist.
Disclosure of Invention
In order to solve the problems, the utility model provides a high-flame-retardance environment-friendly flexible cable for rail transit.
The utility model is realized by the following technical scheme:
the utility model provides a high fire-retardant environmental protection flexible cable for track traffic, includes the sinle silk unit, the sinle silk unit includes copper core and cladding at its insulating layer, the outside of sinle silk unit is equipped with the packing layer, the outside of packing layer is equipped with the shielding layer, the outside of shielding layer is equipped with fire-retardant layer, the surface interval on fire-retardant layer is equipped with a plurality of annular, the outside on fire-retardant layer is equipped with the flame retardant layer, the inside of flame retardant layer is equipped with basalt fiber rope, the outside of flame retardant layer is equipped with the oversheath.
The shielding layer adopts a Mylar layer.
The fire-resistant layer is formed by wrapping a fire-resistant mica tape.
The outer sheath is made of low-smoke halogen-free polyolefin.
The packing layer adopts fire-proof mud.
The flame-retardant layer is made of low-smoke halogen-free flame retardant material.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the surface of the flame-retardant layer is provided with the annular grooves, so that the cable can be bent along the annular grooves when being bent, and the flexibility of the cable is improved; the cable is internally provided with a fire-resistant layer, a flame-retardant layer and flame-retardant mud, and has high flame retardance; the flame-retardant layer is made of low-smoke halogen-free flame retardant material, and has excellent environmental protection performance.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic structural view of a flame retardant layer according to the present utility model.
In the figure: 1. a filler layer; 2. a copper core; 3. an insulating layer; 4. a shielding layer; 5. a flame retardant layer; 6. a refractory layer; 7. an outer sheath; 8. basalt fiber ropes; 9. and a ring groove.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1 of the specification drawings, the high-flame-retardance environment-friendly flexible cable for rail transit comprises a wire core unit, wherein the wire core unit comprises a copper core 2 and an insulating layer 3 coated outside the copper core unit, a filler layer 1 is arranged outside the wire core unit, a shielding layer 4 is arranged outside the filler layer 1, a flame-retardant layer 5 is arranged outside the shielding layer 4, a plurality of annular grooves 9 are formed in the surface of the flame-retardant layer 5 at intervals, a flame-retardant layer 6 is arranged outside the flame-retardant layer 5, basalt fiber ropes 8 are arranged inside the flame-retardant layer 6, and an outer sheath 7 is arranged outside the flame-retardant layer 6.
The shielding layer 4 adopts a Mylar layer.
The fire-resistant layer 6 is formed by wrapping fire-resistant mica tapes.
The outer sheath 7 is made of low-smoke halogen-free polyolefin.
The packing layer 1 adopts fire-proof mud.
The flame-retardant layer 5 is made of low-smoke halogen-free flame retardant material.
Example 1
The utility model provides a high fire-retardant environmental protection flexible cable for track traffic, including the sinle silk unit, the sinle silk unit includes copper core 2 and cladding at its insulating layer 3, the outside of sinle silk unit is equipped with packing layer 1, packing layer 1 adopts fire-proof mud, the outside of packing layer 1 is equipped with shielding layer 4, shielding layer 4 adopts the wheat to draw the layer, the outside of shielding layer 4 is equipped with flame retardant coating 5, flame retardant coating 5 adopts low smoke and zero halogen flame retardant material to make, the surface interval of flame retardant coating 5 is equipped with a plurality of annular 9, the outside of flame retardant coating 5 is equipped with flame retardant coating 6, flame retardant coating 6 adopts fire-resistant mica tape to wrap up to form, the inside of flame retardant coating 6 is equipped with basalt fiber rope 8, basalt fiber rope 8 is fixed wherein in the mica tape process of wrapping up, the outside of flame retardant coating 6 is equipped with oversheath 7, oversheath 7 adopts low smoke and zero halogen polyolefin to make.
According to the utility model, the surface of the flame-retardant layer 5 is provided with the annular grooves 9, so that the cable can be bent along the annular grooves 9 when being bent, and the flexibility of the cable is improved; after the annular groove 9 is formed, in order to avoid influencing the strength of the cable, basalt fiber ropes 8 are fixedly arranged in the fireproof layer 6 of the cable in a penetrating manner, so that the strength of the cable is improved; the cable is internally provided with the fire-resistant layer 6, the flame-retardant layer 5 and fire-retardant mud, and has high flame retardance; the flame-retardant layer is made of low-smoke halogen-free flame retardant material, and has excellent environmental protection performance.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, but rather the equivalent variations and modifications in shape, construction, characteristics and spirit according to the scope of the claims should be construed to be included in the scope of the claims.
Claims (6)
1. The utility model provides a high fire-retardant environmental protection flexible cable for track traffic which characterized in that: the cable core unit comprises a copper core (2) and an insulating layer (3) wrapping the copper core, wherein a filler layer (1) is arranged outside the copper core unit, a shielding layer (4) is arranged outside the filler layer (1), a flame retardant layer (5) is arranged outside the shielding layer (4), a plurality of annular grooves (9) are formed in the surface of the flame retardant layer (5) at intervals, a flame retardant layer (6) is arranged outside the flame retardant layer (5), basalt fiber ropes (8) are arranged inside the flame retardant layer (6), and an outer jacket (7) is arranged outside the flame retardant layer (6).
2. The high flame retardant and environment friendly flexible cable for rail transit as claimed in claim 1, wherein: the shielding layer (4) adopts a Mylar layer.
3. The high flame retardant and environment friendly flexible cable for rail transit as claimed in claim 1, wherein: the fire-resistant layer (6) is formed by wrapping fire-resistant mica tapes.
4. The high flame retardant and environment friendly flexible cable for rail transit as claimed in claim 1, wherein: the outer sheath (7) is made of low-smoke halogen-free polyolefin.
5. The high flame retardant and environment friendly flexible cable for rail transit as claimed in claim 1, wherein: the packing layer (1) adopts fire-proof mud.
6. The high flame retardant and environment friendly flexible cable for rail transit as claimed in claim 1, wherein: the flame-retardant layer (5) is made of low-smoke halogen-free flame retardant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320041448.2U CN218896499U (en) | 2023-01-06 | 2023-01-06 | High-flame-retardance environment-friendly flexible cable for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320041448.2U CN218896499U (en) | 2023-01-06 | 2023-01-06 | High-flame-retardance environment-friendly flexible cable for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218896499U true CN218896499U (en) | 2023-04-21 |
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ID=85997977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320041448.2U Active CN218896499U (en) | 2023-01-06 | 2023-01-06 | High-flame-retardance environment-friendly flexible cable for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218896499U (en) |
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2023
- 2023-01-06 CN CN202320041448.2U patent/CN218896499U/en active Active
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