Crosslinked polyethylene sheath control cable convenient to install and maintain

Abstract

The utility model discloses a crosslinked polyethylene sheath control cable convenient to install and maintain, which sequentially comprises an outer sheath, an armor layer, an inner protection layer, an outer belting layer, a shielding layer and an inner belting layer from outside to inside, the outer sheath is a crosslinked polyethylene sheath, and a central pressure-resistant rope and six cable cores are arranged in the inner belting layer. According to the control cable, the numbers of the inner convex ribs and the outer convex ribs of the first cable core, the second cable core, the third cable core, the fourth cable core, the fifth cable core and the sixth cable core are different, so that each cable core can be identified conveniently, and the colors of the insulating layers of the plurality of core wires in the same cable core are different pairwise, so that the corresponding core wires in the corresponding cable cores can be identified conveniently when operation is carried out at the two ends of the cable; therefore, installation and maintenance are convenient. In addition, a plurality of inner convex ribs and a plurality of outer convex ribs enable the control cable to have a better pressure-resistant effect in the radial direction, the inner belting layer and the central pressure-resistant rope made of the foaming material enable the inner convex ribs and the outer convex ribs to be protected from being crushed, and the pressure-resistant effect is further improved.

Description

Technical Field

[0001] The utility model relates to the field of cables, and more specifically to a cross-linked polyethylene sheathed control cable which is convenient to install and maintain. Background Art

[0002] Control cables are used to transmit control and measurement signals. They are widely used in industrial and mining enterprises, energy and transportation sectors, and modern high-rise buildings, enabling remote operation, control, and signal transmission. Their primary purpose is to ensure the normal operation and safety of equipment, thus placing high demands on performance and quality.

[0003] The cable cores of traditional control cables often look similar, with multiple cores lacking distinct markings. This makes it difficult to quickly and accurately identify each core during installation and maintenance, increasing the difficulty of installation and maintenance and easily leading to misoperation. This can cause connection errors, disrupting normal equipment operation, and even causing safety incidents. Furthermore, within the same cable core, the insulation of multiple cores may share the same color, making it difficult to quickly locate the corresponding core when working at both ends of the cable. This increases wiring time, reduces work efficiency, and increases the risk of misconnections. The pressure resistance of traditional control cables can be suboptimal, and the internal structure of the cable can be easily damaged when subjected to external pressure. Utility Model Content

[0004] The utility model aims to overcome the defects of the prior art and provide a cross-linked polyethylene sheathed control cable which is easy to install and maintain.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a control cable, comprising, from the outside to the inside, an outer sheath, an armor layer, an inner sheath, an outer tape layer, a shielding layer and an inner tape layer, the outer sheath is a cross-linked polyethylene sheath, a central pressure-resistant rope and six cable cores are arranged in the inner tape layer, the six cable cores surround the central pressure-resistant rope, the cable core comprises a cable core sheath and a plurality of cores located in the cable core sheath, the core comprises a conductor and an insulating layer covering the conductor, the cross-section of the cable core sheath is fan-shaped, and the side of the cable core sheath close to the central pressure-resistant rope has abutment against the central pressure-resistant rope. The inner convex rib of the pressure rope is provided, and the side close to the inner wrapping layer has an outer convex rib abutting the inner wrapping layer. The six cable cores can be divided into the first cable core, the second cable core, the third cable core, the fourth cable core, the fifth cable core and the sixth cable core. The first, third, fifth, second, fourth and sixth cable cores are distributed in a circular shape with equal intervals. The cable core sheaths of the first, third and fifth cable cores each have an outer convex rib, the cable core sheaths of the second, fourth and sixth cable cores each have two outer convex ribs, the cable core sheaths of the first and second cable cores each have an inner convex rib, the cable core sheaths of the third and fourth cable cores each have two inner convex ribs, and the cable core sheaths of the fifth and sixth cable cores each have three inner convex ribs.

[0006] Furthermore, the armor layer is a steel belt armor layer.

[0007] Thereby providing better mechanical properties for the cable.

[0008] Furthermore, the shielding layer is a copper tape shielding layer.

[0009] Thereby improving the shielding effect of the cable.

[0010] Furthermore, the insulation layer is a polyethylene insulation layer.

[0011] Thus the insulation performance of the cable is good.

[0012] Furthermore, the central pressure-resistant rope is made of foam material.

[0013] Thereby improving the voltage resistance of the cable.

[0014] Furthermore, the colors of the insulation layers of the multiple core wires of the same cable core are different from each other.

[0015] Therefore, when operating at both ends of the cable, it is convenient to identify the corresponding core wires in the corresponding cable core, thereby facilitating installation and maintenance.

[0016] Furthermore, the inner convex ribs and the outer convex ribs both extend along the length direction of the cable core.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the control cable of the present application, the number of inner and outer ribs of the first, second, third, fourth, fifth and sixth cable cores is different, so that each cable core can be easily identified, and the colors of the insulation layers of the multiple core wires in the same cable core are different from each other, so that when operating at both ends of the cable, it is easy to identify the corresponding core wires in the corresponding cable core, thereby facilitating installation and maintenance.

[0019] 2. The control cable of the present application has multiple inner convex ribs and multiple outer convex ribs, which make the control cable have better pressure resistance in the radial direction. The inner wrapping layer and the central pressure-resistant rope of the foam material protect the inner and outer convex ribs from being crushed and further increase the pressure resistance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first-person perspective diagram of the control cable;

[0021] Figure 2 This is an enlarged view of area A;

[0022] Figure 3 This is a schematic diagram of the control cable from the second perspective;

[0023] Figure 4 This is an enlarged view of area B;

[0024] Figure 5 This is a cross-sectional view of the control cable.

[0025] Explanation of the accompanying drawings: outer sheath 1; armor layer 2; inner sheath 3; outer tape layer 4; shielding layer 5; inner tape layer 6; cable core layer 7; inner convex rib 7.1; outer convex rib 7.2; insulating layer 8; conductor 9; central pressure-resistant rope 10; first cable core 11; second cable core 12; third cable core 13; fourth cable core 14; fifth cable core 15; sixth cable core 16. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The utility model provides Figure 1-5 The cable is a cross-linked polyethylene (XLPE) sheathed control cable designed for easy installation and maintenance. The cable comprises, from outside to inside, an outer sheath 1, an armor layer 2, an inner sheath 3, an outer tape layer 4, a shielding layer 5, and an inner tape layer 6. The outer sheath 1 is a cross-linked polyethylene (XLPE) sheath. The inner tape layer 6 houses a central pressure-resistant cord 10 and six cable cores, which surround the central pressure-resistant cord 10. The cable core comprises a core wrap 7 and multiple wire cores within the core wrap 7. Each wire core comprises a conductor 9 and an insulating layer 8 surrounding the conductor 9. The core wrap 7 has a fan-shaped cross-section and has internal ribs 7 on the side of the core wrap 7 near the central pressure-resistant cord 10, which abut against the cord. 1, and the side close to the inner tape layer 6 has an outer convex rib 7.2 abutting the inner tape layer 6, the six cable cores can be divided into a first cable core 11, a second cable core 12, a third cable core 13, a fourth cable core 14, a fifth cable core 15 and a sixth cable core 16, the first, third, fifth, second, fourth and sixth cable cores are distributed in a circular shape with equal intervals, the cable core wrapping of the first, third and fifth cable cores each has an outer convex rib 7.2, the cable core wrapping of the second, fourth and sixth cable cores each has two outer convex ribs 7.2, the cable core wrapping of the first and second cable cores each has an inner convex rib 7.1, the cable core wrapping of the third and fourth cable cores each has two inner convex ribs 7.1, and the cable core wrapping of the fifth and sixth cable cores each has three inner convex ribs 7.1.

[0028] The armor layer 2 is a steel tape armor layer. The shielding layer 5 is a copper tape shielding layer. The insulation layer 8 is a polyethylene insulation layer. The central pressure-resistant rope 10 is made of a foam material. The insulation layers 8 of the multiple cores of the same cable core have different colors. The inner ribs 7.1 and outer ribs 7.2 extend along the length of the cable core. The control cable has a circular structure.

[0029] Working Principle: The control cable of this application has different numbers of inner and outer ribs on the first, second, third, fourth, fifth, and sixth cable cores, making it easier to identify each cable core. Furthermore, the insulation colors of the multiple cores within the same cable core are different, making it easier to identify the corresponding cores within the corresponding cable cores when operating at both ends of the cable, thereby facilitating installation and maintenance. Furthermore, the multiple inner and outer ribs provide the control cable with better radial pressure resistance. The inner tape layer and the central pressure-resistant rope of the foam material protect the inner and outer ribs from being crushed, further increasing the pressure resistance.

[0030] During the specific preparation process, the first, third, fifth, second, fourth, and sixth cable cores are arranged in order around the central pressure rope. Then, an inner tape layer is used to fix the cable cores and the central pressure rope together, ensuring that adjacent cable cores abut against each other to form an integral structure. Then, copper tape is wrapped around the outside of the inner tape layer to form a shielding layer, thereby improving the electromagnetic shielding effect of the cable. Then, an outer tape layer is prepared outside the shielding layer, and an inner sheath is extruded outside the outer tape layer. A steel tape armor layer is prepared outside the inner sheath to enhance the mechanical strength and pressure resistance of the cable. Finally, a cross-linked polyethylene outer sheath is extruded outside the steel tape armor layer to provide mechanical protection and corrosion resistance for the entire cable.

[0031] Although the present invention has been illustrated and described with respect to preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A cross-linked polyethylene sheathed control cable that is easy to install and maintain, characterized in that: From the outside to the inside, it includes an outer sheath, an armor layer, an inner sheath, an outer tape layer, a shielding layer and an inner tape layer. The outer sheath is a cross-linked polyethylene sheath. A central pressure-resistant rope and six cable cores are arranged in the inner tape layer. The six cable cores surround the central pressure-resistant rope. The cable core includes a cable core sheath and a plurality of cores located in the cable core sheath. The core includes a conductor and an insulating layer covering the conductor. The cross-section of the cable core sheath is fan-shaped. The side of the cable core sheath close to the central pressure-resistant rope has an inner convex rib that abuts the central pressure-resistant rope, and the side close to the inner tape layer has an inner convex rib that abuts the central pressure-resistant rope. One side has an outer convex rib abutting the inner covering layer, and the six cable cores can be divided into the first cable core, the second cable core, the third cable core, the fourth cable core, the fifth cable core and the sixth cable core. The first, third, fifth, second, fourth and sixth cable cores are distributed in a circular shape with equal intervals. The cable core coverings of the first, third and fifth cable cores each have an outer convex rib, the cable core coverings of the second, fourth and sixth cable cores each have two outer convex ribs, the cable core coverings of the first and second cable cores each have an inner convex rib, the cable core coverings of the third and fourth cable cores each have two inner convex ribs, and the cable core coverings of the fifth and sixth cable cores each have three inner convex ribs.

2. The cross-linked polyethylene sheathed control cable that is easy to install and maintain according to claim 1 is characterized in that: The armor layer is a steel tape armor layer.

3. The cross-linked polyethylene sheathed control cable that is easy to install and maintain according to claim 1, characterized in that: The shielding layer is a copper tape shielding layer.

4. The cross-linked polyethylene sheathed control cable that is easy to install and maintain according to claim 1, characterized in that: The insulating layer is a polyethylene insulating layer.

5. The cross-linked polyethylene sheathed control cable that is easy to install and maintain according to claim 1, characterized in that: The central pressure-resistant rope is made of foam material.

6. The cross-linked polyethylene sheathed control cable that is easy to install and maintain according to claim 1, characterized in that: The colors of the insulation layers of multiple cores of the same cable core are different from each other.

7. The cross-linked polyethylene sheathed control cable that is easy to install and maintain according to claim 1, characterized in that: The inner convex ribs and the outer convex ribs both extend along the length direction of the cable core.

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