CN212874123U - Be used for open air corrosion-resistant type mineral insulated cable - Google Patents
Be used for open air corrosion-resistant type mineral insulated cable Download PDFInfo
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- CN212874123U CN212874123U CN202021321795.3U CN202021321795U CN212874123U CN 212874123 U CN212874123 U CN 212874123U CN 202021321795 U CN202021321795 U CN 202021321795U CN 212874123 U CN212874123 U CN 212874123U
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Abstract
The utility model discloses an outdoor corrosion-resistant mineral insulated cable, which comprises an outer sleeve, wherein a crosslinked polyethylene layer is fixed on the inner side of the outer sleeve, water-absorbing expansion rubber is arranged on the inner surface of the crosslinked polyethylene layer, a water-blocking layer is arranged on the outer surface of the water-absorbing expansion rubber, ceramic fiber cloth is fixed on the inner surface of the water-absorbing expansion rubber, second silicon rubber is arranged on the inner side of the water-absorbing expansion rubber, and a rubber support strip is fixed on the inner wall of the second silicon rubber; through being provided with crosslinked polyethylene layer, water blocking layer and the inflation rubber that absorbs water, be convenient for avoid the cable to take place to break and damage the back, be not convenient for absorb water and carry out the shutoff to the gap department that breaks, through being provided with first silicon rubber, rubber support bar, second silicon rubber and ceramic fiber cloth, be convenient for avoid great collision vibrations, cause the damage to the cable.
Description
Technical Field
The utility model belongs to the technical field of mineral insulated cable, concretely relates to be used for open air corrosion-resistant type mineral insulated cable.
Background
A cable is an electric energy or signal transmission device, and generally consists of several or several groups of wires, and the cable includes a power cable, a control cable, a compensation cable, a mineral insulation cable and the like. They are composed of single-strand or multi-strand wires and insulating layers and are used for connecting circuits, electric appliances and the like, and mineral insulating materials are generally arranged on the inner sides of mineral insulating cables so as to improve the high-temperature resistant and corrosion resistant effects of the cables.
Present be used for open air mineral insulated cable in the use, cable cross-linked polyethylene layer is mostly single layer construction, breaks the damage back in the emergence, and outside water droplet can flow into inside the cable, causes to cable corrosion damage, is not convenient for carry out the shutoff waterproof to the gap that breaks, and cable buffering shock attenuation effect is not good in addition, and the cable can be damaged in the great collision vibrations in external world, and for this reason we propose one kind and be used for open air corrosion resistant type mineral insulated cable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be used for open air corrosion resistant type mineral insulated cable to propose current being used for open air mineral insulated cable in the use among the above-mentioned background art of solution, the cable cross-linked polyethylene layer is mostly single layer construction, after taking place to break and damage, outside water droplet can flow into inside the cable, cause to cable corrosion damage, be not convenient for carry out the shutoff waterproof to the crack, cable buffering shock attenuation effect is not good in addition, the problem of cable can be damaged in the great collision vibrations of external world.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for open air corrosion resistant type mineral insulated cable, includes the overcoat, the overcoat inboard is fixed with the crosslinked polyethylene layer, crosslinked polyethylene in situ surface is provided with the swelling rubber that absorbs water, the swelling rubber surface that absorbs water is provided with the water blocking layer, the swelling rubber in situ surface that absorbs water is fixed with ceramic fiber cloth, the swelling rubber inboard that absorbs water is provided with second silicon rubber, second silicon rubber inner wall is fixed with the rubber support strip, rubber support strip lower extreme is fixed with first silicon rubber, first silicon rubber inboard is provided with the sinle silk, the sinle silk outside is provided with the insulating rubber cover, insulating rubber cover surface packing has the mineral filling layer, overcoat surface integrated into one piece has anti-skidding line.
Preferably, the anti-skid lines are in a herringbone shape, and chamfer angles are arranged at the end parts of the anti-skid lines.
Preferably, the crosslinked polyethylene layer is provided with two positions, and the thickness of the crosslinked polyethylene layer is zero six millimeters to eight millimeters.
Preferably, the outer surface of the crosslinked polyethylene layer is provided with a convex block, and the convex block is rectangular.
Preferably, the rubber support bars are of an inclined structure and are uniformly distributed along the circumferential direction of the first silicon rubber.
Preferably, the first silicon rubber and the second silicon rubber are both annular, and the thickness of the first silicon rubber is two times to five times that of the second silicon rubber.
Preferably, a steel wire rope is arranged in the middle of the inner side of the mineral filling layer, and the outer diameter of the steel wire rope is eight millimeters to twenty-five millimeters.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) through being provided with crosslinked polyethylene layer, water blocking layer and the inflation rubber that absorbs water, be convenient for avoid the cable to take place to break and damage the back, be not convenient for absorb water and carry out the shutoff to the gap department that breaks, the water droplet is to the inboard infiltration of cable, causes the cable to take place to corrode the damage, is convenient for improve the practicality of device.
(2) Through being provided with first silicon rubber, rubber support bar, second silicon rubber and ceramic fiber cloth, be convenient for avoid cable shock attenuation effect not good, cause great vibrations to damage, be convenient for isolated outside temperature simultaneously, reduce the influence that high temperature caused the cable core, through being provided with anti-skidding line, be convenient for avoid cable surface smooth, cause and grip the inconvenience, anti-skidding supporting effect when improving and grip.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic cross-sectional view at a in fig. 1 according to the present invention;
FIG. 3 is a schematic view of the anti-slip pattern structure of the present invention;
in the figure: 1. a wire rope; 2. a wire core; 3. a mineral-filled layer; 4. a crosslinked polyethylene layer; 5. a jacket; 6. a second silicone rubber; 7. a first silicone rubber; 8. a rubber support strip; 9. a ceramic fiber cloth; 10. water-swellable rubber; 11. a water resistant layer; 12. and (4) anti-skid lines.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an outdoor corrosion-resistant mineral insulated cable comprises an outer sleeve 5, a crosslinked polyethylene layer 4 is fixed on the inner side of the outer sleeve 5, water-absorbing expanded rubber 10 is arranged on the inner surface of the crosslinked polyethylene layer 4, the fracture part of the crosslinked polyethylene layer 4 is convenient to plug and seal, the waterproof effect is improved, a water-blocking layer 11 is arranged on the outer surface of the water-absorbing expanded rubber 10, the waterproof effect is better, ceramic fiber cloth 9 is fixed on the inner surface of the water-absorbing expanded rubber 10, better high-temperature-resistant effect is convenient, second silicon rubber 6 is arranged on the inner side of the water-absorbing expanded rubber 10, a rubber supporting strip 8 is fixed on the inner wall of the second silicon rubber 6, the outside collision is convenient to buffer, a first silicon rubber 7 is fixed at the lower end of the rubber supporting strip 8, better high-temperature-resistant effect is convenient, a wire core 2 is arranged on the inner side of the first silicon rubber 7, an, is convenient for better high temperature resistant effect, and the outer surface of the outer sleeve 5 is integrally formed with anti-skid grains 12.
In this embodiment, preferably, the anti-slip pattern 12 is shaped like a Chinese character 'ren', and the end of the anti-slip pattern 12 is provided with a chamfer, so as to facilitate a better anti-slip effect.
In this embodiment, preferably, the crosslinked polyethylene layer 4 is provided with two positions, and the thickness of the crosslinked polyethylene layer 4 is zero six millimeters to eight millimeters, so as to facilitate a better corrosion resistance effect.
In this embodiment, preferred, crosslinked polyethylene layer 4 surface is provided with protruding piece, is convenient for improve crosslinked polyethylene layer 4 and outside and glues glutinous area of connection, improves firm in connection effect, and protruding piece is the rectangle.
In this embodiment, preferably, the rubber support bars 8 are of an inclined structure, so as to facilitate a better buffering effect, and the rubber support bars 8 are uniformly distributed along the circumferential direction of the first silicone rubber 7.
In this embodiment, preferably, the first silicone rubber 7 and the second silicone rubber 6 are both annular, and the thickness of the first silicone rubber 7 is two times to five times that of the second silicone rubber 6, so as to facilitate better strength.
In this embodiment, preferably, the middle part of the inner side of the mineral filling layer 3 is provided with a steel wire rope 1, so that the anti-fracture effect of the cable is improved, and the outer diameter of the steel wire rope 1 is eight millimeters to twenty-five millimeters.
The utility model discloses a theory of operation and use flow: when the cable is used, the cross-linked polyethylene layer 4 has a good corrosion-resistant effect, the corrosion damage of an object outside to the cable is convenient to reduce through the double-layer cross-linked polyethylene layer 4, the water-resistant layer 11 is mainly composed of chlorinated polyethylene and has a good waterproof effect, when the water-resistant layer 11 and the cross-linked polyethylene layer 4 are damaged and cracked, the cracking is blocked through the water absorption expansion of the water absorption expansion rubber 10, the waterproof effect can be further improved, the water drop is prevented from permeating and corroding towards the inner side of the cable, the high-temperature resistant effect of the ceramic fiber cloth 9 is good, the fireproof effect is convenient to improve, the rubber support bar 8 is of an inclined structure, the high-temperature resistant effects of the second silicon rubber 6 and the first silicon rubber 7 are good, the cavity formed between the second silicon rubber 6 and the first silicon rubber support bar 7 is convenient to insulate, meanwhile, the rubber support bar 8 is of an inclined structure, the influence of, the anti-slip lines 12 are in a shape of Chinese character 'ren', so that when the cable is installed, the anti-slip lines have a good anti-slip supporting effect with the outer sleeve 5 when the cable is held by hands, and the cable is convenient to hold.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An outdoor corrosion-resistant mineral-insulated cable comprising a jacket (5), characterized in that: the utility model discloses a waterproof insulation material, including overcoat (5) inboard be fixed with crosslinked polyethylene layer (4), crosslinked polyethylene layer (4) internal surface is provided with water swelling rubber (10), water swelling rubber (10) surface is provided with water blocking layer (11), water swelling rubber (10) internal surface is fixed with ceramic fiber cloth (9), water swelling rubber (10) inboard is provided with second silicon rubber (6), second silicon rubber (6) inner wall is fixed with rubber support bar (8), rubber support bar (8) lower extreme is fixed with first silicon rubber (7), first silicon rubber (7) inboard is provided with sinle silk (2), sinle silk (2) outside is provided with insulating rubber cover, insulating rubber cover surface packing has mineral filling layer (3), overcoat (5) surface integrated into one piece has anti-skidding line (12).
2. The corrosion-resistant mineral-insulated cable for outdoor use according to claim 1, characterized in that: the anti-skid lines (12) are in a herringbone shape, and chamfers are arranged at the end parts of the anti-skid lines (12).
3. The corrosion-resistant mineral-insulated cable for outdoor use according to claim 1, characterized in that: the crosslinked polyethylene layer (4) is provided with two positions, and the thickness of the crosslinked polyethylene layer (4) is zero six millimeters to eight millimeters.
4. A corrosion-resistant mineral-insulated cable for outdoor use according to claim 3, characterized in that: the outer surface of the crosslinked polyethylene layer (4) is provided with a convex block which is rectangular.
5. The corrosion-resistant mineral-insulated cable for outdoor use according to claim 1, characterized in that: the rubber support strip (8) is of an inclined structure, and the rubber support strip (8) is uniformly distributed along the circumferential direction of the first silicon rubber (7) to form a plurality of grooves.
6. The corrosion-resistant mineral-insulated cable for outdoor use according to claim 1, characterized in that: the first silicon rubber (7) and the second silicon rubber (6) are both annular, and the thickness of the first silicon rubber (7) is two times to five times that of the second silicon rubber (6).
7. The corrosion-resistant mineral-insulated cable for outdoor use according to claim 1, characterized in that: and a steel wire rope (1) is arranged in the middle of the inner side of the mineral filling layer (3), and the outer diameter of the steel wire rope (1) is eight millimeters to twenty-five millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021321795.3U CN212874123U (en) | 2020-07-08 | 2020-07-08 | Be used for open air corrosion-resistant type mineral insulated cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021321795.3U CN212874123U (en) | 2020-07-08 | 2020-07-08 | Be used for open air corrosion-resistant type mineral insulated cable |
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| Publication Number | Publication Date |
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| CN212874123U true CN212874123U (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021321795.3U Active CN212874123U (en) | 2020-07-08 | 2020-07-08 | Be used for open air corrosion-resistant type mineral insulated cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114758833A (en) * | 2022-04-29 | 2022-07-15 | 安徽中盛电气集团有限公司 | Dampproofing cable is used in underground wiring |
-
2020
- 2020-07-08 CN CN202021321795.3U patent/CN212874123U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114758833A (en) * | 2022-04-29 | 2022-07-15 | 安徽中盛电气集团有限公司 | Dampproofing cable is used in underground wiring |
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