CN216817908U

CN216817908U - Be used for open air low temperature resistant type cable

Info

Publication number: CN216817908U
Application number: CN202220650661.9U
Authority: CN
Inventors: 闵习华; 刘建
Original assignee: Jiangsu Aerospace Special Cable Co ltd
Current assignee: Jiangsu Aerospace Special Cable Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-06-24
Anticipated expiration: 2032-03-23

Abstract

The utility model discloses an outdoor low-temperature-resistant cable which comprises an outer sheath, wherein armor is arranged on the inner side of the outer sheath, an isolation sleeve is arranged on the inner side of the armor, filling is arranged on the inner side of the isolation sleeve, a power-on circuit is embedded and arranged on the inner side of the filling, a bulge is arranged on the surface of the inner side of the isolation sleeve, a heating wire is arranged on the inner side of the bulge, and a reinforcing insulating sleeve is sleeved and arranged on the outer side of the heating wire; set up ice-melt structure in the inboard of this cable, in the cable erection use, if produce on the cable and freeze, when self weight increases, the inside heater strip heating of accessible cable, will freeze and melt, prevent the cable weight increase of erectting, and erect the in-process at this cable usually, if the cable receives tramples the extrusion, the inside circular telegram circuit of cable easily shifts the winding, it is protruding to probably lead to producing the swell on the cable, this inboard circular telegram circuit of cable carries on spacingly through the rubber holder, thereby the practicality of this cable has been improved.

Description

Be used for open air low temperature resistant type cable

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to an outdoor low-temperature-resistant cable.

Background

Cables are made of one or more mutually insulated conductors and an outer insulating protective layer, a conductor that transmits power or information from one place to another: typically a cable like rope made up of several or groups of conductors (at least two in each group) twisted together, with the conductors of each group being insulated from each other and usually twisted around a center, and being entirely surrounded by a highly insulating covering, the cable being characterized by internal electrical conduction and external insulation.

The existing low temperature resistant cable for the outdoors is usually used in the process of cable installation, if the cable is installed, the outdoor air is low, the cable is easy to freeze in rainy and snowy weather, the cable is easy to erect, if the cable is frozen more, the self weight of the cable is easy to aggravate, the cable is likely to break, the safety is affected, and meanwhile the practicability of the cable is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an outdoor low-temperature-resistant cable, which aims to solve the problems that the conventional outdoor low-temperature-resistant cable proposed in the background art is generally easy to freeze on an erected cable when the cable is installed and used, the outdoor air is low in the cable installation process and the cable is easy to increase the self weight of the cable if the cable is frozen too much, the cable is likely to break, the safety is affected, and the practicability of the cable is reduced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a be used for open air low temperature resistant type cable, includes the oversheath, the armor has been installed to the inboard of oversheath, the separation sleeve has been installed to the inboard of armor, the inboard of separation sleeve is provided with the packing, the inboard of packing is inlayed and is established and install the power-on circuit, the inside surface of separation sleeve is provided with the arch, the heater strip has been installed to bellied inboard, the outside cover of heater strip is established and is installed the enhancement insulating cover, it inlays with the heater strip to establish and installs bellied inboard.

Preferably, the circular telegram circuit includes insulation shield, polyethylene layer, conductor shield and wire, the conductor shield cover is established in wire's the outside, the outside at conductor shield is established to the polyethylene layer cover, insulation shield cover establishes the outside on polyethylene layer, simultaneously the card is equipped with the rubber holder on the circular telegram circuit.

Preferably, three electrified lines are embedded in the inner side of the filling, and are clamped and limited through a rubber retainer.

Preferably, a plurality of the rubber retainers are equidistantly mounted on the power-on line.

Preferably, the inner side of the isolation sleeve is provided with three protrusions, and heating wires are arranged in the three protrusions.

Preferably, three heater strip arrays are arranged on the inner side surface of the isolation sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

(1) in the process of cable installation, if outdoor air is low and the outdoor air meets rainy and snowy weather, icing is easily caused on the erected cable, if icing is more, the self weight of the cable is easily increased, the cable is possibly broken, and the safety of the cable is influenced;

(2) and usually in this cable erection process, if the cable receives to trample the extrusion, the easy aversion winding of circular telegram circuit inside the cable probably leads to producing on the cable and swells the arch, sets up the rubber holder through the inboard at this cable, and circular telegram circuit carries on spacingly through the rubber holder, avoids circular telegram circuit to shift to the practicality of this cable has been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the mounting structure of the rubber cage of the present invention;

in the figure: 1. an outer sheath; 2. armoring; 3. an isolation sleeve; 4. reinforcing the insulating sleeve; 5. heating wires; 6. a rubber retainer; 7. insulating shielding; 8. a polyethylene layer; 9. a conductor shield; 10. a metal wire; 11. and (6) filling.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a be used for open air low temperature resistant type cable, including oversheath 1, armor 2 has been installed to the inboard of oversheath 1, the separation sleeve 3 has been installed to the inboard of armor 2, the inboard of separation sleeve 3 is provided with fills 11, the inboard of filling 11 is inlayed and is established and install the power-on circuit, the inside surface of separation sleeve 3 is provided with the arch, heater strip 5 has been installed to bellied inboard, the outside cover of heater strip 5 is established and is installed enhancement insulating cover 4, it installs at bellied inboard to strengthen insulating cover 4 and heater strip 5 to inlay to establish, through the inboard at this cable sets up heater strip 5, in the cable erection use, if produce on the cable and freeze, when self weight increases, the inside heater strip 5 of accessible cable heats, will freeze and melt, prevent that the cable weight increase of erectting from being weighed and drop off.

For better use, in this embodiment, preferably, the energized circuit includes an insulating shield 7, a polyethylene layer 8, a conductor shield 9 and a metal wire 10, the conductor shield 9 is sleeved outside the metal wire 10, the polyethylene layer 8 is sleeved outside the conductor shield 9, the insulating shield 7 is sleeved outside the polyethylene layer 8, and the energized circuit is clamped with a rubber holder 6 to prevent the cable from being extruded and deformed, for better installation and use, in this embodiment, preferably, three energized circuits are embedded inside the filler 11, the three energized circuits are clamped and limited by the rubber holder 6 to prevent the cable from being extruded to cause dislocation and protrusion, for better limitation, in this embodiment, preferably, a plurality of rubber holders 6 are equidistantly arranged on the energized circuit to ensure the stability of the cable, for better heating, in this embodiment, preferably, three bulges are arranged on the inner side of the isolation sleeve 3, and heating wires 5 are arranged in the three bulges, so that the heating effect is improved.

The working principle and the using process of the utility model are as follows: in the process of cable installation, if outdoor air is low and the cable is exposed to rain and snow weather, icing is easily caused on the erected cable, if icing is more, the self weight of the cable is increased, the cable is likely to drop and break, and the safety of the cable is affected, by arranging the heating wire 5 on the inner side of the cable, when the self weight of the cable is increased in the process of cable erection and use, electric energy can be converted into heat energy through the heating wire 5 in the cable, the icing is melted through constant temperature, the weight of the erected cable is prevented from being increased, the use safety is affected, and generally in the process of cable erection, if the cable is extruded by trampling, an electrified line in the cable is likely to be displaced and wound, bulging and bulges are likely to be caused on the cable, by arranging the rubber retainer 6 on the inner side of the cable, the electrified line is clamped and arranged through the rubber retainer 6, avoid the circular telegram circuit to shift to the practicality of this cable has been improved.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be used for open air low temperature resistant type cable, includes oversheath (1), armor (2) have been installed to the inboard of oversheath (1), cage (3) have been installed to the inboard of armor (2), the inboard of cage (3) is provided with fills (11), the inboard of filling (11) is inlayed and is established and install the power-on circuit, its characterized in that: the inside surface of separation sleeve (3) is provided with the arch, heater strip (5) have been installed to bellied inboard, the outside cover of heater strip (5) is established and is installed and strengthen insulating cover (4), strengthen insulating cover (4) and heater strip (5) inlay to establish and install bellied inboard.

2. A low temperature resistant cable for outdoor use according to claim 1, wherein: the electrified line includes insulation shield (7), polyethylene layer (8), conductor shield (9) and wire (10), the outside at wire (10) is established to conductor shield (9) cover, the outside at conductor shield (9) is established to polyethylene layer (8) cover, the outside at polyethylene layer (8) is established to insulation shield (7) cover, simultaneously the card is equipped with rubber holder (6) on the electrified line.

3. A low temperature resistant cable for outdoor use according to claim 2, wherein: the three power-on lines are embedded in the inner side of the filler (11) and are clamped and limited through the rubber retainer (6).

4. A low temperature resistant cable for outdoor use according to claim 2, wherein: the rubber retainers (6) are arranged on the electrified circuit at equal intervals.

5. A low temperature resistant cable for outdoor use according to claim 1, wherein: the inner side of the isolation sleeve (3) is provided with three bulges, and the three bulges are internally provided with heating wires (5).

6. A low temperature resistant cable for outdoor use according to claim 5, wherein: the three heating wires (5) are arranged on the inner side surface of the isolation sleeve (3) in an array mode.