CN219979201U - Antifreezing cable - Google Patents

Abstract

The utility model discloses an antifreezing cable, which comprises a plurality of cable cores positioned in an inner sheath, wherein the outer walls of the cable cores are fixedly sleeved with insulating layers, a filling layer is arranged in the inner sheath, the outer walls of the inner sheath are sleeved with metal shielding layers, two electric heating belts are arranged in the metal shielding layers, and the outer walls of the metal shielding layers are sleeved with outer sheaths; the metal shielding layer is woven by copper wires; the electric heating belt and the copper wires of the metal shielding layer are mutually woven; when the cable is used in a low-temperature environment, the electric heating belt can be electrified so as to heat in the outer sheath, and the electric heating belt is positioned in the metal shielding layer which is a good heat conductor, so that heat can be uniformly distributed between the inner sheath and the outer sheath, and the cable is uniformly heated between the inner sheath and the outer sheath, so that the cracking and brittle failure of the inner sheath, the outer sheath, the insulating layer and the like caused by the influence of low temperature are effectively avoided, and the cable can be normally used at extremely cold temperature.

Description

Antifreezing cable

Technical Field

The utility model relates to a cable, in particular to an antifreezing cable.

Background

The cable is formed by twisting several or groups of wires (at least two wires in each group), wherein each group of wires are mutually insulated and are often twisted around a center, and the whole outer surface is covered with a high-insulation coating. The cable has an inner energized, outer insulated feature.

The restoration of China is wide, and in the northern area, the outdoor minimum temperature in winter often reaches-40 ℃, so that the cable has higher anti-freezing performance requirement, the outer sheath of the traditional cable is easy to harden and embrittle in a low-temperature environment, the bending performance of the cable is greatly reduced, and great inconvenience and potential safety hazards are brought to the installation, laying and operation of the cable.

Some cables are made of low-temperature-resistant materials, and the freezing resistance of the cables can be improved to a certain extent, but when the cables are in a low-temperature environment for a long time, insulating layers and the like in the outer jackets of the cables are also affected by low temperature, and cracking and brittle failure phenomena occur.

For this purpose we propose an anti-freeze cable.

Disclosure of Invention

The utility model aims to provide an antifreezing cable for solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a type cable prevents frostbite, includes that a plurality of is located the sinle silk of inner sheath, the outer wall of sinle silk has all been fixed to be cup jointed the insulating layer, be provided with the filling layer in the inner sheath, the outer wall cover of inner sheath is equipped with the metal shielding layer, be provided with two electric heating strips in the metal shielding layer, the outer wall cover of metal shielding layer is equipped with the oversheath.

As a further scheme of the utility model: the metal shielding layer is formed by braiding copper wires.

As a further scheme of the utility model: the electric heating belt and the copper wires of the metal shielding layer are mutually woven.

As a further scheme of the utility model: the electric heating belts are spirally distributed along the length direction of the inner sheath.

As still further aspects of the utility model: the inner sheath is internally provided with a locating strip, the wire cores are uniformly distributed on the outer side of the locating strip, and a steel wire rope is arranged in the locating strip in a penetrating manner.

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

when the cable is used in a low-temperature environment, the electric heating belt can be electrified so as to heat in the outer sheath, and the electric heating belt is positioned in the metal shielding layer which is a good heat conductor, so that heat can be uniformly distributed between the inner sheath and the outer sheath, and the cable is uniformly heated between the inner sheath and the outer sheath, so that the cracking and brittle failure of the inner sheath, the outer sheath, the insulating layer and the like caused by the influence of low temperature are effectively avoided, and the cable can be normally used at extremely cold temperature.

Drawings

Fig. 1 is a schematic structural view of an antifreeze cable.

The wire rope comprises a positioning strip 1, a wire rope 2, a wire core 3, an insulating layer 4, a filling layer 5, an inner sheath 6, a metal shielding layer 7, an electric heating belt 8 and an outer sheath 9.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model will be further described in detail with reference to the following examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have the orientation specific to the specification, be constructed and operated in the specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

Referring to fig. 1, in the embodiment of the utility model, an anti-freezing cable comprises a plurality of cable cores 3 positioned in an inner sheath 6, wherein insulating layers 4 are fixedly sleeved on the outer walls of the cable cores 3, a filling layer 5 is arranged in the inner sheath 6, a metal shielding layer 7 is sleeved on the outer walls of the inner sheath 6, two electric heating belts 8 are arranged in the metal shielding layer 7, an outer sheath 9 is sleeved on the outer walls of the metal shielding layer 7, and the outer sheath 9 is made of low-temperature resistant rubber.

By adopting the scheme, when the cable is used in a low-temperature environment, the electric heating belt 8 can be electrified so as to heat the inside of the outer sheath 9, and because the electric heating belt 8 is positioned in the metal shielding layer 7 and the metal shielding layer 7 is a good conductor of heat, the heat can be uniformly distributed between the inner sheath 6 and the outer sheath 9, so that the cable is uniformly heated between the inner sheath 6 and the outer sheath 9, and cracking, brittle failure and the like caused by the influence of low temperature of the inner sheath 6, the outer sheath 9, the insulating layer 4 and the like are effectively avoided, and the cable can be normally used at extremely cold temperature.

In one embodiment of the present utility model, the metal shielding layer 7 is formed by braiding copper wires, and the metal shielding layer 7 formed by braiding copper wires has good shielding effect, does not affect bending of the cable, and has good use effect.

On the basis of the above embodiment, further, the electric heating belt 8 and the copper wires of the metal shielding layer 7 are woven with each other, and by weaving the electric heating belt 8 and the copper wires of the metal shielding layer 7 with each other, a good positioning effect can be achieved on the electric heating belt 8, and the bonding firmness between the electric heating belt 8 and the metal shielding layer 7 can be enhanced.

Based on the above embodiment, further, the electric heating strips 8 are spirally distributed along the length direction of the inner sheath 6, so that the inner sheath 6 and the outer sheath 9 are heated more uniformly.

With specific reference to fig. 1, in one embodiment of the present utility model, a positioning strip 1 is disposed in the inner sheath 6, the wire cores 3 are uniformly distributed on the outer side of the positioning strip 1, and a steel wire rope 2 is disposed in the positioning strip 1 in a penetrating manner; through setting up of location strip 1 and wire rope 2, can effectually improve the tensile strength of cable.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (5)

1. An anti-freezing cable, which is characterized in that: including sinle silk (3) that a plurality of is located inner sheath (6), insulating layer (4) have all been fixedly cup jointed to the outer wall of sinle silk (3), be provided with filling layer (5) in inner sheath (6), the outer wall cover of inner sheath (6) is equipped with metal shielding layer (7), be provided with two electric heating strips (8) in metal shielding layer (7), the outer wall cover of metal shielding layer (7) is equipped with oversheath (9).

2. An antifreeze cable according to claim 1, wherein: the metal shielding layer (7) is formed by braiding copper wires.

3. An antifreeze cable according to claim 2, wherein: the electric heating belt (8) and the copper wires of the metal shielding layer (7) are mutually woven.

4. An antifreeze cable according to claim 3, wherein: the electric heating strips (8) are spirally distributed along the length direction of the inner sheath (6).

5. An antifreeze cable according to claim 1, wherein: the cable is characterized in that a positioning strip (1) is arranged in the inner sheath (6), the cable cores (3) are uniformly distributed on the outer side of the positioning strip (1), and a steel wire rope (2) is arranged in the positioning strip (1) in a penetrating mode.