CN216528168U - Power cable for enhancing flame-retardant and fire-resistant performance - Google Patents
Power cable for enhancing flame-retardant and fire-resistant performance Download PDFInfo
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- CN216528168U CN216528168U CN202122907428.2U CN202122907428U CN216528168U CN 216528168 U CN216528168 U CN 216528168U CN 202122907428 U CN202122907428 U CN 202122907428U CN 216528168 U CN216528168 U CN 216528168U
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Abstract
The utility model discloses a power cable for enhancing flame retardance and fire resistance, which comprises an outer protective layer, a flame retardant layer and an oxygen isolation layer, wherein the outer protective layer, the flame retardant layer and the oxygen isolation layer are sequentially sleeved together from outside to inside, a built-in frame is arranged inside the oxygen isolation layer, a wire core is arranged on the built-in frame, and a filling layer is arranged in a gap of the oxygen isolation layer. According to the utility model, the built-in frame and the supporting part are arranged in the external protective layer and are matched with each other to protect the internal wire core, so that the damage of external force to the wire core can be effectively prevented, the strength of the cable is improved, the normal operation of power transmission is ensured, the normal operation of production and life is ensured, the maintenance cost of the cable is reduced, and the cable has good economic benefit.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a power cable capable of enhancing flame-retardant and fire-resistant performances.
Background
The cable is generally a cable similar to a rope formed by twisting a plurality of or a plurality of groups of leads (at least two leads in each group), each group of leads are mutually insulated and are usually twisted around a center, a highly-insulated covering layer is wrapped outside the whole cable, the cable has the characteristics of internal electrification and external insulation, the cable plays a very important role in the development of China, at present, the arrangement and the distribution of the cable are distributed in various regions and environments, which is a challenge to the strength of the cable, so that how to improve the strength and the performance of the cable is the important factor in the future development.
SUMMERY OF THE UTILITY MODEL
The utility model aims to avoid the defects in the prior art and provide the power cable for enhancing the flame-retardant and fire-resistant performance, thereby effectively solving the defects in the prior art.
In order to realize the purpose, the utility model adopts the technical scheme that: a power cable for enhancing flame retardance and fire resistance comprises an outer protective layer, a flame retardant layer and an oxygen isolation layer which are sequentially sleeved together from outside to inside, wherein a built-in frame is arranged inside the oxygen isolation layer, a wire core is arranged on the built-in frame, and a filling layer is arranged in a gap of the oxygen isolation layer;
the built-in frame comprises a first installation part positioned at the center in the oxygen isolation layer, a plurality of second installation parts are arranged on the first installation part in the circumferential direction, the wire cores are installed in the two installation parts, the second installation parts are connected with the first installation part through first connecting parts, every two adjacent second installation parts are connected together through second connecting parts, a supporting part is arranged in the oxygen isolation layer at a position corresponding to the outer side of each second connecting part, one side of the supporting part is attached to the inner wall of the oxygen isolation layer, and the other side of the supporting part is attached to the second connecting parts;
the first connecting portion are provided with a plurality of first reinforcing ribs, and the second connecting portion are provided with a plurality of second reinforcing ribs.
Further, the first installation portion with the second installation portion is that the cross-section is annular tubular structure, first connecting portion with the second connecting portion are the arc structure.
Further, the supporting part includes supporting pad and supporting leg, the terminal surface of supporting pad the inner wall laminating on oxygen layer separates, the tip of supporting leg supports and leans on the second connecting portion.
Further, the outside of sinle silk is provided with interior sheath, the outside of interior sheath is provided with the insulating layer.
Furthermore, the outer protective layer is made of low-smoke halogen-free flame-retardant polyolefin.
Further, the flame-retardant layer is made of a flame-retardant wrapping tape.
Further, the fireproof layer is made of mica tapes.
Further, the material of the oxygen isolation layer is ceramic silicon rubber.
Furthermore, the filling layer is made of hemp ropes.
Furthermore, the inner protection layer is made of irradiation cross-linked polyethylene, and the insulating layer is made of polyvinyl chloride.
The technical scheme of the utility model has the following beneficial effects: according to the utility model, the built-in frame and the supporting part are arranged in the external protective layer and are matched with each other to protect the internal wire core, so that the damage of external force to the wire core can be effectively prevented, the strength of the cable is improved, the normal operation of power transmission is ensured, the normal operation of production and life is ensured, the maintenance cost of the cable is reduced, and the cable has good economic benefits.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
fig. 2 is a schematic plan view of a built-in rack according to an embodiment of the utility model.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, the power cable for enhancing flame retardance and fire resistance according to the embodiment includes an outer sheath 1, a flame retardant layer 2, a flame retardant layer 3, and an oxygen barrier layer 4, which are sequentially sleeved together from outside to inside, wherein an internal frame 5 is arranged inside the oxygen barrier layer 4, a wire core 6 is arranged on the internal frame 5, and a filling layer 7 is further arranged in the oxygen barrier layer 4 at a gap;
the built-in frame 5 comprises a first installation part 51 positioned at the center in the oxygen isolation layer 4, the first installation part 51 is provided with a plurality of second installation parts 52 in the circumferential direction, the wire cores 6 are installed in the two installation parts, the second installation parts 52 are connected with the first installation parts 52 through first connection parts 53, every two adjacent second installation parts 52 are connected together through second connection parts 54, a support part 8 is arranged in the oxygen isolation layer 4 at a position corresponding to the outer side of each second connection part 54, one side of each support part 8 is attached to the inner wall of the oxygen isolation layer 4, and the other side of each support part 8 is attached to the corresponding second connection part 54;
be provided with a plurality of first strengthening ribs 55 on the first connecting portion 53, be provided with a plurality of second strengthening ribs 56 on the second connecting portion 54, the strengthening rib improves the compressive capacity of connecting portion to improve the performance of built-in 5 totality.
The material of 5 supporting parts 8 of built-in frame is the polyethylene propylene, and this material has certain elasticity, and self intensity is enough, can play fine supporting effect, also can effectively protect sinle silk 6.
The first mounting portion 51 and the second mounting portion 52 are both cylindrical structures with annular cross sections, and the first connecting portion 53 and the second connecting portion 54 are both arc-shaped structures.
The supporting portion 8 includes a supporting pad 81 and supporting legs 82, the end face of the supporting pad 81 is attached to the inner wall of the oxygen barrier layer 4, and the end of the supporting legs 82 abuts on the second connecting portion 54.
The outside of sinle silk 6 is provided with interior sheath 61, and the outside of interior sheath 61 is provided with insulating layer 62.
Preferably, the outer sheath 1 is made of low-smoke halogen-free flame-retardant polyolefin.
Preferably, the material of the flame-retardant layer 2 is a flame-retardant wrapping tape.
Preferably, the material of the fire-resistant layer 3 is mica tape.
Preferably, the material of the oxygen barrier layer 4 is ceramic silicone rubber.
Preferably, the filling layer 7 is made of hemp rope.
Preferably, the inner sheath layer 61 is made of radiation-crosslinked polyethylene, and the insulating layer 62 is made of polyvinyl chloride.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. A power cable for enhancing flame-retardant and fire-resistant properties is characterized in that: the flame-retardant cable comprises an outer protective layer, a flame-retardant layer and an oxygen-isolating layer which are sequentially sleeved together from outside to inside, wherein a built-in frame is arranged inside the oxygen-isolating layer, a cable core is arranged on the built-in frame, and a filling layer is also arranged in a gap of the oxygen-isolating layer;
the built-in frame comprises a first installation part positioned at the center in the oxygen isolation layer, a plurality of second installation parts are arranged on the first installation part in the circumferential direction, the wire cores are installed in the two installation parts, the second installation parts are connected with the first installation part through first connecting parts, every two adjacent second installation parts are connected together through second connecting parts, a supporting part is arranged in the oxygen isolation layer at a position corresponding to the outer side of each second connecting part, one side of the supporting part is attached to the inner wall of the oxygen isolation layer, and the other side of the supporting part is attached to the second connecting parts;
the first connecting portion is provided with a plurality of first reinforcing ribs, and the second connecting portion is provided with a plurality of second reinforcing ribs.
2. An electric power cable with enhanced fire-retardant and fire-resistant properties according to claim 1, wherein: the first installation part and the second installation part are of tubular structures with annular cross sections, and the first connection part and the second connection part are of arc structures.
3. An electric power cable with enhanced fire-retardant and fire-resistant properties according to claim 1, wherein: the supporting part includes supporting pad and supporting leg, the terminal surface of supporting pad the inner wall laminating on separating the oxygen layer, the tip of supporting leg supports and leans on the second connecting portion.
4. An electric power cable with enhanced fire-retardant and fire-resistant properties according to claim 1, wherein: the outside of sinle silk is provided with interior sheath, the outside of interior sheath is provided with the insulating layer.
5. An electric power cable with enhanced fire-retardant and fire-resistant properties according to claim 1, wherein: the outer protective layer is made of low-smoke halogen-free flame-retardant polyolefin.
6. An electric power cable with enhanced fire-retardant and fire-resistant properties according to claim 1, wherein: the flame-retardant layer is made of a flame-retardant wrapping tape.
7. An electric power cable with enhanced fire-retardant and fire-resistant properties according to claim 1, wherein: the fireproof layer is made of mica tapes.
8. An electric power cable with enhanced fire-retardant and fire-resistant properties according to claim 1, wherein: the material of the oxygen isolation layer is ceramic silicon rubber.
9. An electric power cable with enhanced fire-retardant and fire-resistant properties according to claim 1, wherein: the filling layer is made of hemp ropes.
10. An electric power cable with enhanced fire-retardant and fire-resistant properties according to claim 4, wherein: the material of the inner protection layer is irradiation cross-linked polyethylene, and the material of the insulating layer is polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122907428.2U CN216528168U (en) | 2021-11-25 | 2021-11-25 | Power cable for enhancing flame-retardant and fire-resistant performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122907428.2U CN216528168U (en) | 2021-11-25 | 2021-11-25 | Power cable for enhancing flame-retardant and fire-resistant performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216528168U true CN216528168U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122907428.2U Active CN216528168U (en) | 2021-11-25 | 2021-11-25 | Power cable for enhancing flame-retardant and fire-resistant performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216528168U (en) |
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2021
- 2021-11-25 CN CN202122907428.2U patent/CN216528168U/en active Active
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