Low-temperature-resistant wire cable

Abstract

The utility model discloses a low temperature resistant wire cable comprising a cable main body, a plurality of groups of cable core bodies are installed inside the cable main body, a signal shielding net is installed outside the cable main body, and a thermal insulation layer with a thermal insulation function is installed on the outer wall of one end, far away from the cable main body, of the signal shielding net. According to the utility model, the thermal insulation layer and the wear-resistant layer are arranged outside the cable main body, so that the thermal insulation layer and the wear-resistant layer can improve the low temperature resistance and the external wear resistance of the cable main body integrally, the loss of heat inside the cable main body is reduced, and meanwhile, the external part of the cable main body is prevented from being damaged; and a plurality of groups of spacer bushes are arranged outside the wear-resistant layer at equal intervals, so that the contact area between the surface of the cable main body and the ground can be effectively reduced, the transmission of ground low temperature on the surface of the cable main body is reduced, the overall low-temperature resistance of the cable is further improved, and the cable main body can be used in a low-temperature environment for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of wire and cable, in particular to an anti-low temperature wire and cable. Background Art

[0002] With the development of social economy, the power industry has penetrated into daily life. As the carrier of power transmission, wire and cable has been widely used. In winter in some northwest regions, due to the very low environmental temperature, the temperature on the surface of the cable itself is likely to drop rapidly, which easily leads to a decrease in the surface rigidity of the cable and damage. Once the surface of the cable is damaged, the transmission performance and mechanical and physical properties of the cable will be greatly affected.

[0003] In order to cope with low temperature, the widely used cables on the market usually add a thermal insulation sleeve on the surface of the cable. However, in the actual use process, the exposed thermal insulation sleeve is easily damaged by external rubbing, resulting in the cable being exposed to the outside. Therefore, we propose an anti-low temperature wire and cable to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anti-low temperature wire and cable to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an anti-low temperature wire and cable, including a cable main body, multiple cable cores are installed inside the cable main body, a signal shielding net is installed outside the cable main body, a thermal insulation layer with a thermal insulation function is installed on the outer wall of the end of the signal shielding net away from the cable main body, a wear-resistant layer is installed at the end of the thermal insulation layer away from the signal shielding net, multiple extension columns are installed at equal intervals on the outside of the wear-resistant layer, and a spacer sleeve is installed between the multiple extension columns.

[0006] As a further preference of this technical scheme, a plurality of thermal insulation strips are filled in the gap between the cable main body and the cable core.

[0007] As a further preference of this technical scheme, the wear-resistant layer is made of polytetrafluoroethylene as the raw material.

[0008] As a further preference of this technical scheme, the thermal insulation layer is made of polyurethane foam as the raw material.

[0009] As a further preference of this technical scheme, a gap is provided between the spacer sleeve and the wear-resistant layer.

[0010] As a further preference of this technical scheme, the ends of the multiple extension columns are all set to be arc-shaped.

[0011] The utility model provides an anti-low temperature wire and cable, which has the following beneficial effects:

[0012] The utility model installs a heat-insulating layer and a wear-resistant layer outside the cable body, enabling the heat-insulating layer and the wear-resistant layer to improve the overall low-temperature resistance and external wear resistance of the cable body, reducing the heat loss inside the cable body, and preventing damage to the outside of the cable body. Additionally, by equidistantly installing multiple sets of spacer sleeves outside the wear-resistant layer, the contact area between the cable body surface and the ground can be effectively reduced, thereby reducing the transfer of ground low temperature to the cable body surface, further enhancing the overall low-temperature resistance of the cable, and allowing the cable body to be used in a low-temperature environment for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 is a rear-view structural schematic diagram of the utility model;

[0015] Figure 3 is a front-view sectional structural schematic diagram of the utility model.

[0016] In the figure: 1. Cable body; 2. Cable core; 3. Signal shielding net; 4. Heat-insulating layer; 5. Wear-resistant layer; 6. Extension column; 7. Spacer sleeve; 8. Heat-insulating strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model.

[0018] The utility model provides a technical solution: As Figures 1 to 3 shown, in this embodiment, an anti-low-temperature wire and cable includes a cable body 1. Multiple sets of cable cores 2 are installed inside the cable body 1. A signal shielding net 3 is installed outside the cable body 1. A heat-insulating layer 4 with heat-insulating function is installed on the outer wall of one end of the signal shielding net 3 away from the cable body 1. A wear-resistant layer 5 is installed at one end of the heat-insulating layer 4 away from the signal shielding net 3. Multiple sets of extension columns 6 are equidistantly installed outside the wear-resistant layer 5, and spacer sleeves 7 are installed between the multiple sets of extension columns 6.

[0019] By installing a heat-insulating layer 4 and a wear-resistant layer 5 outside the cable body 1, the heat-insulating layer 4 and the wear-resistant layer 5 can improve the overall low-temperature resistance and external wear resistance of the cable body 1, reduce the heat loss inside the cable body 1, and prevent damage to the outside of the cable body 1. Additionally, by equidistantly installing multiple sets of spacer sleeves 7 outside the wear-resistant layer 5, the contact area between the cable body 1 surface and the ground can be effectively reduced, thereby reducing the transfer of ground low temperature to the cable body 1 surface, further enhancing the overall low-temperature resistance of the cable, and allowing the cable body 1 to be used in a low-temperature environment for a long time.

[0020] In other embodiments, multiple groups of heat insulation strips 8 are filled in the gap between the cable body 1 and the cable core 2;

[0021] Through this design, the heat insulation strips 8 can narrow the gap between the cable body 1 and the cable core 2 and reduce heat loss.

[0022] In other embodiments, the wear-resistant layer 5 is made of polytetrafluoroethylene as the raw material;

[0023] Since polytetrafluoroethylene is a material made by polymerizing and foaming isocyanate and hydroxy compounds, it not only has extremely high low friction and aging resistance, can effectively prevent external objects from damaging the cable surface, effectively improve the wear resistance of the cable body 1 surface, but also has high and low temperature resistance, can be used for a long time at -180 to 260 °C, has excellent heat resistance and cold resistance, and its physical and chemical properties still remain stable at extreme temperatures. Therefore, it can also effectively ensure the low temperature resistance of the overall cable body 1. Therefore, polyurethane foam is suitable as the raw material for the wear-resistant layer 5.

[0024] In other embodiments, the heat insulation layer 4 is made of polyurethane foam as the raw material;

[0025] Since polyurethane foam has excellent heat insulation performance, especially rigid polyurethane foam plastics, which are mostly foamed with low thermal conductivity foaming agents, so it has a low thermal conductivity and is widely used in various heat insulation and preservation fields. Therefore, it can effectively ensure the low temperature resistance of the overall cable body 1 and reduce the heat loss inside the cable body 1. Therefore, polyurethane foam is suitable as the raw material for the heat insulation layer 4.

[0026] In other embodiments, a gap is provided between the spacer sleeve 7 and the wear-resistant layer 5;

[0027] Through this design, the heat transfer between the spacer sleeve 7 and the wear-resistant layer 5 is reduced, thereby reducing the low temperature on the surface of the wear-resistant layer 5.

[0028] In other embodiments, the ends of multiple groups of extension columns 6 are all set to be arc-shaped;

[0029] Through this design, the contact area between the ends of the extension columns 6 and the outside can be effectively reduced, and at the same time, damage to the outside caused by the ends of the extension columns 6 can be prevented.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-low-temperature wire and cable, comprising a cable main body (1), characterized in that: Inside the cable main body (1), multiple groups of cable cores (2) are installed. Outside the cable main body (1), a signal shielding net (3) is installed. At one end of the signal shielding net (3) away from the cable main body (1), a heat-insulating layer (4) with heat-insulating function is installed. At one end of the outside of the heat-insulating layer (4) away from the signal shielding net (3), a wear-resistant layer (5) is installed. Multiple groups of extension columns (6) are installed at equal intervals on the outside of the wear-resistant layer (5). A spacer sleeve (7) is installed between multiple groups of the extension columns (6).

2. The low-temperature resistant wire and cable according to claim 1, characterized in that: Multiple groups of heat-insulating strips (8) are filled in the gap between the cable main body (1) and the cable cores (2).

3. The low-temperature resistant wire and cable according to claim 1, characterized in that: The wear-resistant layer (5) is made of polytetrafluoroethylene as the raw material.

4. The low-temperature resistant wire and cable according to claim 1, wherein: The heat-insulating layer (4) is made of polyurethane foam as the raw material.

5. The low-temperature resistant wire and cable according to claim 2, wherein: A gap is provided between the spacer sleeve (7) and the wear-resistant layer (5).

6. The anti-low-temperature wire and cable according to claim 2, characterized in that: The ends of multiple groups of the extension columns (6) are all set to be arc-shaped.

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