Corrosion-resistant cable

Abstract

The utility model discloses a corrosion-resistant cable which comprises a plurality of inner wire cores, fillers are arranged outside the inner wire cores, a mica wrapping layer is arranged outside the fillers, a metal shielding layer is arranged outside the mica wrapping layer, and an insulating layer is arranged outside the metal shielding layer. The outer side of the insulating layer is provided with a corrosion-resistant sleeve, the corrosion-resistant sleeve is composed of an inner layer, a corrosion-resistant layer and an outer layer, the circumference of the inner layer is provided with a plurality of axially arranged dovetail grooves, and the outer sides of the inner layer and the dovetail grooves are coated with a corrosion-resistant coating to form the corrosion-resistant layer; dovetail blocks matched with the dovetail grooves are arranged on the inner side of the outer layer, and the inner layer and the outer layer are tightly fixed together; and an outer protective sleeve is arranged on the outer side of the corrosion-resistant sleeve. According to the utility model, the corrosion-resistant sleeve is made into a multi-layer structure, the connection firmness of the inner layer and the outer layer is increased through the cooperation of the dovetail grooves, and the corrosion-resistant layer is clamped between the inner layer and the outer layer, so that the corrosion resistance of the cable is further improved, and the service life of the cable is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a corrosion-resistant cable. Background Technology

[0002] Cables are typically made up of several or groups of conductors (at least two conductors per group) twisted together. Each group of conductors is insulated from the others and is often twisted around a central conductor. The entire cable is covered with a highly insulating outer layer. Some cables operate in complex environments, exposed to sunlight and rain, or buried deep underground. These environmental factors can cause corrosion to the cable surface, leading to surface damage over time and affecting normal transmission operations, resulting in inconvenience. Therefore, improving the corrosion resistance of cables is crucial to ensuring their long-term stable operation.

[0003] In existing cables, corrosion resistance is generally achieved by coating the outside of the cable with a corrosion-resistant coating. However, the coating has poor adhesion to the outside of the cable and is prone to peeling off, resulting in poor cable quality and short service life. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a corrosion-resistant cable that effectively improves the cable's corrosion resistance and extends its service life.

[0005] Therefore, the technical solution of this utility model is as follows: a corrosion-resistant cable includes multiple inner cores, with a filler material on the outside of the inner cores, a mica wrapping layer on the outside of the filler material, a metal shielding layer on the outside of the mica wrapping layer, and an insulation layer on the outside of the metal shielding layer; a corrosion-resistant sleeve is provided on the outside of the insulation layer, the corrosion-resistant sleeve is composed of an inner layer, a corrosion-resistant layer and an outer layer, the inner layer has several axially arranged dovetail grooves on its circumference, and the inner layer and the outside of the dovetail grooves are coated with a corrosion-resistant coating to form a corrosion-resistant layer; the inner side of the outer layer has dovetail blocks that match the dovetail grooves, and the inner layer and the outer layer are tightly fixed together; an outer protective sleeve is provided on the outside of the corrosion-resistant sleeve.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: a water-blocking layer is fixedly connected to the surface of the insulating layer, the water-blocking layer being formed by wrapping with water-blocking tape; a moisture-proof layer is fixedly connected to the surface of the water-blocking layer, the moisture-proof layer being ceramicized silicone rubber.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the inner and outer layers of the corrosion-resistant sleeve are made of fluororubber, and the corrosion-resistant coating is an epoxy resin anti-corrosion coating.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the mica wrapping layer has three inner wire cores arranged in a triangular shape, and a flexible support is provided in the middle of the three inner wire cores. The flexible support has a triangular structure and arc grooves on its three sides, which fits into the outer circumference of the inner wire cores.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the inner core includes several metal cores, a second wrapping layer is provided on the outside of the metal cores, and a second shielding layer and a second insulation layer are provided on the outside of the second wrapping layer.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the insulating layer is a synthetic resin insulating protective layer, and the thickness of the insulating layer is 0.5 to 1.0 mm.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the outer protective sleeve is made of polyvinyl chloride or high-density polyethylene.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The corrosion-resistant sleeve is made into a multi-layer structure, and the dovetail groove is used to increase the connection between the inner and outer layers. The corrosion-resistant layer is sandwiched between the inner and outer layers to extend the corrosion resistance of the cable. The inner and outer layers can be made of fluororubber with good corrosion resistance to further improve the corrosion resistance of the cable and extend its service life.

[0014] 2. Flexible supports are provided between the inner cores. The flexible support bars can provide flexible support and limit the three inner cores, which can prevent the three inner cores from being damaged by compression, reduce the damage caused by external forces to the cable, and extend the service life of the cable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0018] The components in the diagram are labeled as follows: Inner core 1, Metal core 11, Second wrapping layer 12, Second shielding layer 13, Second insulation layer 14, Flexible support 2, Arc groove 21, Cavity 22, Filler 3, Mica wrapping layer 4, Metal shielding layer 5, Insulation layer 6, Water-blocking layer 7, Moisture-proof layer 8, Corrosion-resistant sleeve 9, Inner layer 91, Corrosion-resistant layer 92, Outer layer 93, Dovetail groove 94, Dovetail block 95, Outer protective sleeve 10. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0021] See the attached diagram. The corrosion-resistant cable of this embodiment includes three inner cores 1 arranged in a triangular pattern. A flexible support 2 is located between the three inner cores 1. The flexible support 2 has a triangular structure with arc-shaped grooves 21 on its three sides, which fit snugly against the outer circumference of the inner cores 1. Furthermore, a cavity 22 is provided in the center of the flexible support 21 to provide flexible support for the inner cores 1, preventing damage from compression and reducing external force on the cable, thus extending its service life.

[0022] The inner core 1 includes several metal cores 11. A second wrapping layer 12 is provided on the outside of each metal core 11. A second shielding layer 13 and a second insulating layer 14 are provided on the outside of the second wrapping layer 12. The second wrapping layer 12 can be made of mica tape wrapped around the outside of the metal cores, giving it a circular cross-section. The second shielding layer 13 can be made of metal braided mesh, and the second insulating layer 14 is made of synthetic resin insulating material with a thickness of 0.5 mm.

[0023] The inner core 1 is provided with a filler 3 on the outside. The filler in the filler layer 3 is rock wool rope, and the rock wool rope is provided with tensile reinforcing ribs. The filler 3 is provided with a mica wrapping layer 4 on the outside. The mica wrapping layer 4 is provided with a metal shielding layer 5 on the outside. The metal shielding layer 5 is woven from tin-plated copper wire.

[0024] An insulating layer 6 is provided on the outside of the metal shielding layer 5. The insulating layer 6 is a synthetic resin insulating protective layer with a thickness of 0.8 mm. A water-blocking layer 7 is fixedly connected to the surface of the insulating layer 6. The water-blocking layer is formed by wrapping water-blocking tape. A moisture-proof layer 8 is fixedly connected to the surface of the water-blocking layer 7. The moisture-proof layer is made of ceramicized silicone rubber.

[0025] The moisture-proof layer 8 is provided with a corrosion-resistant sleeve 9 on its outer side. The corrosion-resistant sleeve 9 consists of an inner layer 91, a corrosion-resistant layer 92, and an outer layer 93. The inner layer 91 has several axially arranged dovetail grooves 94 on its circumference. The outer side of the inner layer 91 and the dovetail grooves 94 is coated with a corrosion-resistant paint to form the corrosion-resistant layer 92. The inner side of the outer layer 93 has dovetail blocks 95 that match the dovetail grooves. The inner layer 91 and the outer layer 93 are tightly fixed together. The inner layer 91 and the outer layer 93 of the corrosion-resistant sleeve 9 are made of fluororubber, and the corrosion-resistant paint is an epoxy resin anti-corrosion paint. The corrosion-resistant sleeve 9 is provided with an outer protective sleeve 10, which is made of polyvinyl chloride or high-density polyethylene.

[0026] In this embodiment, the corrosion-resistant sleeve 9 is made into a multi-layer structure. The dovetail groove is used to increase the connection between the inner and outer layers. The corrosion-resistant layer is sandwiched between the inner and outer layers to extend the corrosion resistance of the cable. The inner and outer layers can be made of fluororubber with good corrosion resistance to further improve the corrosion resistance of the cable and extend its service life.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A corrosion resistant cable, characterized by: The inner core is provided with a filler outside, the filler is provided with a mica wrapping layer outside, the mica wrapping layer is provided with a metal shielding layer outside, the metal shielding layer is provided with an insulation layer outside; the insulation layer is provided with a corrosion-resistant sleeve outside, the corrosion-resistant sleeve is composed of an inner layer, a corrosion-resistant layer and an outer layer, the circumference of the inner layer is provided with a plurality of axially arranged dovetail grooves, the inner layer and the dovetail grooves are provided with corrosion-resistant paint, forming a corrosion-resistant layer; the outer layer is provided with dovetail blocks matched with the dovetail grooves on the inner side, and the inner layer and the outer layer are tightly fixed together; the corrosion-resistant sleeve is provided with an outer protective sleeve.

2. A corrosion resistant cable as claimed in claim 1, characterised in that: The surface of the insulation layer is fixedly connected with a water-blocking layer, and the water-blocking layer is wrapped by a water-blocking tape; the surface of the water-blocking layer is fixedly connected with a moisture-proof layer, and the moisture-proof layer is ceramicized silicone rubber.

3. A corrosion resistant cable as defined in claim 1, wherein: The inner layer and the outer layer of the corrosion-resistant sleeve are made of fluorine rubber material, and the corrosion-resistant paint is epoxy resin corrosion-resistant paint.

4. A corrosion resistant cable as defined in claim 1, wherein: The mica wrapping layer is provided with three inner cores arranged in a triangular shape, and a flexible support is arranged between the three inner cores, the flexible support is in a triangular structure, and arc grooves are arranged on three sides to fit the outer circumference of the inner core.

5. A corrosion resistant cable as claimed in claim 4, characterised in that: The inner core comprises a plurality of metal cores, the metal cores are provided with a second wrapping layer outside, and the second wrapping layer is provided with a second shielding layer and a second insulation layer outside.

6. A corrosion resistant cable as defined in claim 1, wherein: The insulation layer is a synthetic resin insulation protective layer, and the thickness of the insulation layer is 0.5-1.0 mm.

7. A corrosion resistant cable as defined in claim 1, wherein: The outer protective sleeve is made of polyvinyl chloride or high-density polyethylene.

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