CN214541661U - High-temperature-resistant anti-aging phase-stable radio frequency cable - Google Patents

Abstract

The utility model discloses a high temperature resistant ageing resistance steady phase radio frequency cable relates to the cable field, including a polyvinyl chloride insulating cylinder, the inboard fixed surface of polyvinyl chloride insulating cylinder is connected with three silicon rubber insulating block. The utility model discloses a be provided with the silicon rubber insulating block in a polyvinyl chloride insulating cylinder, polyvinyl chloride has good thermal-insulated and high temperature resistance, make things convenient for the cable to use in high temperature resistance environment, and simultaneously, the inside shielding layer that is provided with of silicon rubber insulating block, the bump, thereby avoid cable core and shielding layer frequent friction when guaranteeing the normal work of cable, the life of cable has been improved, it has thermal-insulated filler to fill through at polyvinyl chloride insulating cylinder is inside, thermal-insulated filler sets up to the asbestos, the asbestos chemical property is stable, alkali resistance is strong, acid resistance is poor, it is absolute electricity, thermal insulation performance is good, can be effectively isolated with high temperature, guarantee the normal work of cable under high temperature environment, the application scope of cable has been improved.

Description

High-temperature-resistant anti-aging phase-stable radio frequency cable

Technical Field

The utility model relates to a cable field, in particular to high temperature resistant ageing resistance steady phase radio frequency cable.

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 high-insulation covering layer is wrapped outside the whole cable, and a plurality of cables are erected in the air or arranged underground or underwater and are used for telecommunication or power transmission.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature resistant ageing resistance surely looks radio frequency cable to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature-resistant anti-aging phase-stable radio-frequency cable comprises a polyvinyl chloride insulating cylinder, wherein three silicon rubber insulating blocks are fixedly connected to the inner side surface of the polyvinyl chloride insulating cylinder, the three silicon rubber insulating blocks are distributed in an annular array, a plurality of connecting columns are fixedly connected between two adjacent silicon rubber insulating blocks, the connecting columns are distributed in an equidistant horizontal manner, the polyvinyl chloride insulating cylinder is filled with heat insulation filler, the silicon rubber insulating block is internally provided with a through groove, the inner side wall of the through groove is fixedly connected with a shielding layer, the inner side wall of the shielding layer is provided with a plurality of salient points, the salient points are connected with the shielding layer in an adhesive way through glue, a plurality of the salient points are distributed in an annular array, lead to inslot portion and be provided with the cable core, the lateral wall and the laminating of a plurality of bump of cable core, the lateral wall cover of polyvinyl chloride insulating cylinder is equipped with fire-retardant layer.

Preferably, the outer side cover of fire-retardant layer is equipped with the inoxidizing coating, the lateral wall coating of inoxidizing coating has waterproof coating.

Preferably, the outer side wall of the polyvinyl chloride insulating cylinder is fixedly connected with a plurality of reinforcing columns, the plurality of reinforcing columns are distributed in an annular array, and one end, far away from the polyvinyl chloride insulating cylinder, of each reinforcing column penetrates through the flame-retardant layer and is fixedly connected with the inner side wall of the protective layer.

Preferably, the heat insulation filler is made of asbestos, and the shielding layer is made of aluminum tape.

Preferably, the flame-retardant layer is a polyolefin layer, the protective layer is a glass fiber cloth layer, and the waterproof coating is a polytetrafluoroethylene coating.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be provided with the silicon rubber insulating block in the polyvinyl chloride insulating cylinder, polyvinyl chloride has good thermal-insulated and high temperature resistance, make things convenient for the cable to use in high temperature resistance environment, simultaneously, the inside shielding layer, the bump of being provided with of silicon rubber insulating block, thereby avoid cable core and shielding layer frequent friction when guaranteeing cable normal work, the life of cable has been improved, through filling thermal-insulated filler in polyvinyl chloride insulating cylinder, thermal-insulated filler sets up to the asbestos, the asbestos chemical property is stable, alkali resistance is strong, the acid resistance is poor, it is good to insulate against electricity, thermal insulation performance, can effectively isolate high temperature, guarantee cable normal work under high temperature environment, the application scope of cable has been improved;

2. the utility model discloses a be provided with fire-retardant layer in the polyvinyl chloride insulating cylinder outside, fire-retardant layer sets up to the polyolefin layer, it is little that the polyolefin has relative density, chemical resistance, the water proofness is good and good mechanical strength has, electric insulation, the life of cable has been improved, through be provided with the inoxidizing coating in fire-retardant layer outside, the inoxidizing coating sets up to the glass fiber cloth layer, glass fiber has stronger anti-cutting performance, careless incised wound cable when avoiding laying, be provided with waterproof coating through the outside at the inoxidizing coating, waterproof coating sets up to polytetrafluoroethylene and films, polytetrafluoroethylene films and has good waterproof performance, make the cable can use under humid environment, the application scope of cable has been improved.

Drawings

Fig. 1 is a schematic side-sectional view of the overall structure of the present invention.

Fig. 2 is an enlarged schematic view of a structure in fig. 1 according to the present invention.

Fig. 3 is a schematic view of the overall structure of the present invention.

In the figure: 1. a polyvinyl chloride insulating cylinder; 2. a silicon rubber insulating block; 3. connecting columns; 4. a thermally insulating filler; 5. a through groove; 6. a shielding layer; 7. salient points; 8. a cable core; 9. a flame retardant layer; 10. a protective layer; 11. a water-resistant coating; 12. and (4) reinforcing the column.

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.

The utility model provides a high temperature resistant ageing resistance steady phase radio frequency cable as shown in figures 1-3, as shown in figures 1 and 3, including a polyvinyl chloride insulating cylinder 1, the inner side surface of the polyvinyl chloride insulating cylinder 1 is fixedly connected with three silicon rubber insulating blocks 2, the three silicon rubber insulating blocks 2 are distributed in an annular array, a plurality of connecting posts 3 are fixedly connected between two adjacent silicon rubber insulating blocks 2, the connecting posts 3 are distributed in an equidistant horizontal manner, different cable cores 8 are separated through the distribution of the connecting posts 3, the mutual interference among the cable cores 8 is avoided, the normal work of the cable is influenced, the inner part of the polyvinyl chloride insulating cylinder 1 is filled with heat insulation filler 4, the heat insulation filler 4 is asbestos, the asbestos has stable chemical property, strong alkali resistance, poor acid resistance, electricity insulation and good heat insulation performance, can effectively isolate high temperature, the normal work of the cable under high temperature environment is ensured, the application range of the cable is improved, the outer side wall of the polyvinyl chloride insulating cylinder 1 is sleeved with the flame-retardant layer 9, the flame-retardant layer 9 is a polyolefin layer, the polyolefin has small relative density, chemical resistance and good water resistance, and has good mechanical strength and electrical insulation, the service life of the cable is prolonged, the outer side of the flame-retardant layer 9 is sleeved with the protective layer 10, the protective layer 10 is a glass fiber cloth layer, glass fibers have strong cutting resistance and are prevented from accidentally cutting the cable during laying, the outer side wall of the protective layer 10 is coated with the waterproof coating 11, the waterproof coating 11 is a polytetrafluoroethylene film which has good waterproof performance, the cable can be used in a humid environment, the application range of the cable is improved, the outer side wall of the polyvinyl chloride insulating cylinder 1 is fixedly connected with the plurality of reinforcing columns 12, and the plurality of reinforcing columns 12 are distributed in an annular array, the one end that the polyvinyl chloride insulating cylinder 1 was kept away from to the enhancement post 12 runs through fire-retardant layer 9 and with the inside wall fixed connection of inoxidizing coating 10, through being provided with a plurality of enhancement posts 12, the inoxidizing coating 10 is connected with polyvinyl chloride insulating cylinder 1 to the enhancement post 12 to the bulk strength of cable has been increased, has improved the crushing resistance of cable.

As shown in fig. 2, logical groove 5 has been seted up to silicon rubber insulating block 2's inside, the inside wall fixedly connected with shielding layer 6 that leads to groove 5, shielding layer 6 sets up to the aluminium strip shielding layer, shielding layer 6's inside wall is provided with a plurality of bumps 7, bump 7 passes through glue and 6 bonding connection of shielding layer, a plurality of bumps 7 are the annular array and distribute, it is provided with cable core 8 to lead to the inside of groove 5, the lateral wall and the laminating of a plurality of bumps 7 of cable core 8, through a plurality of bumps 7, the area of contact between cable core 8 and the shielding layer 6 has been reduced, and then avoid cable core 8 and 6 frequent frictions of shielding layer, and the service life of cable is prolonged.

The utility model discloses the theory of operation:

when the device is used, the silicon rubber insulating block 2 is arranged in the polyvinyl chloride insulating cylinder 1, the polyvinyl chloride has good heat insulation and high temperature resistance, the cable is convenient to use in a high temperature resistant environment, meanwhile, the shielding layer 6 and the salient points 7 are arranged in the silicon rubber insulating block 2, so that frequent friction between the cable core 8 and the shielding layer 6 is avoided while the normal work of the cable is ensured, the service life of the cable is prolonged, the heat insulation filler 4 is filled in the polyvinyl chloride insulating cylinder 1, the heat insulation filler 4 is made of asbestos, the asbestos has stable chemical property, strong alkali resistance and poor acid resistance, the electricity insulation and heat insulation performance are good, the high temperature can be effectively isolated, the normal work of the cable in the high temperature environment is ensured, the application range of the cable is improved, the flame retardant layer 9 is arranged outside the polyvinyl chloride insulating cylinder 1, and the flame retardant layer 9 is made of polyolefin, polyolefin has relative density little, chemical resistance, the water proofness is good and has good mechanical strength, electrical insulation, the life of cable has been improved, through be provided with inoxidizing coating 10 in the fire-retardant layer 9 outside, inoxidizing coating 10 sets up to the glass fiber cloth layer, glass fiber has stronger anti-cutting performance, carelessly cut the cable when avoiding laying, through be provided with waterproof coating 11 in the outside at inoxidizing coating 10, waterproof coating 11 sets up to the polytetrafluoroethylene and scribbles, the polytetrafluoroethylene is filmed and is had good waterproof performance, make the cable can use under humid environment, the application scope of cable has been improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (5)

1. The utility model provides a steady looks radio frequency cable of high temperature resistant ageing resistance, includes a polyvinyl chloride insulating cylinder (1), its characterized in that: the inner side surface of the polyvinyl chloride insulating cylinder (1) is fixedly connected with three silicon rubber insulating blocks (2) in a ring-shaped array distribution manner, two adjacent connecting columns (3) are fixedly connected between the silicon rubber insulating blocks (2) in a plurality of intervals and are horizontally distributed, the inner part of the polyvinyl chloride insulating cylinder (1) is filled with heat-insulating fillers (4), a through groove (5) is formed in the silicon rubber insulating blocks (2), the inner side wall of the through groove (5) is fixedly connected with a shielding layer (6), the inner side wall of the shielding layer (6) is provided with a plurality of salient points (7), the salient points (7) are in bonding connection with the shielding layer (6) through glue, the salient points (7) are in a ring-shaped array distribution manner, and cable cores (8) are arranged in the through groove (5), the outer side wall of the cable core (8) is attached to the plurality of salient points (7), and the outer side wall of the polyvinyl chloride insulating cylinder (1) is sleeved with the flame-retardant layer (9).

2. The high temperature resistant anti-aging phase-stable radio frequency cable according to claim 1, characterized in that: the outer side cover of fire-retardant layer (9) is equipped with inoxidizing coating (10), the lateral wall coating of inoxidizing coating (10) has waterproof coating (11).

3. The high temperature resistant anti-aging phase-stable radio frequency cable according to claim 2, characterized in that: the outer side wall of the polyvinyl chloride insulating cylinder (1) is fixedly connected with a plurality of reinforcing columns (12), the reinforcing columns (12) are distributed in an annular array mode, and one end, far away from the polyvinyl chloride insulating cylinder (1), of each reinforcing column (12) penetrates through the flame-retardant layer (9) and is fixedly connected with the inner side wall of the protective layer (10).

4. The high temperature resistant anti-aging phase-stable radio frequency cable according to claim 3, characterized in that: the heat insulation filler (4) is made of asbestos, and the shielding layer (6) is made of aluminum tape.

5. The high temperature resistant anti-aging phase-stable radio frequency cable according to claim 4, characterized in that: the flame-retardant layer (9) is a polyolefin layer, the protective layer (10) is a glass fiber cloth layer, and the waterproof coating (11) is a polytetrafluoroethylene coating.

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