Aluminum-coated steel heat-tracing power cable

Abstract

The utility model discloses an aluminum-clad steel heat tracing power cable which comprises a power cable body, a plurality of binding steel rings are distributed on the outer side of the power cable body in a linear array mode, each binding steel ring comprises two splicing binding rings which are symmetrically distributed, and binding plates are connected between the end portions of the two splicing binding rings. Inserting binding blocks are fixed to the two ends of the binding plate, a rotary alignment rod is fixed to the center of the bottom of the binding plate, and the rotary alignment rod is rotationally inserted between the ends of the two splicing binding rings. The splicing binding ring has the advantages that the binding plate for connecting the two splicing binding rings is rotated clockwise, the bottom end of the inserting binding block is separated from the butt joint hole when the binding plate is rotated clockwise, the two splicing binding rings are disassembled, after the two splicing binding rings are disassembled, the power cable main body can be disassembled, and the power cable main body can be disassembled conveniently. And recycling of the power cable main body is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum-clad steel heating power cables, in particular to an aluminum-clad steel heating power cable. Background Art

[0002] Power cables are cables used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, power station lead-out lines, internal power supplies for industrial and mining enterprises, and underwater transmission lines across rivers and seas. The basic structure of a power cable consists of four parts: a core (conductor), an insulation layer, a shielding layer, and a protective layer. The core is the conductive part of the power cable, used to transmit electrical energy, and is the main part of the power cable.

[0003] Aluminum-clad steel heating power cable is a type of power cable. Aluminum-clad steel heating power cable is also called aluminum-clad steel wire. It is an overhead conductor composed of aluminum-clad steel wire as a reinforcing core and hard aluminum wire twisted together. Compared with ordinary steel-core aluminum stranded wire, aluminum-clad steel core aluminum stranded wire is 5% lighter, has a 2-3% higher current carrying capacity, a 1-2% lower sag, and a 4-6% lower power loss. It also has good corrosion resistance, a long service life, a simple structure, is easy to install and maintain, and has a large transmission capacity.

[0004] However, in the prior art, aluminum-clad steel heating power cables are externally welded with steel rings or are bundled and fixed with metal cassettes. The steel rings and metal cassettes are inconvenient to disassemble after being fixed, which is not conducive to the recycling of aluminum-clad steel heating power cables. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an aluminum-clad steel heating power cable.

[0006] In order to solve the above technical problems, the technical solution of the utility model is:

[0007] The aluminum-clad steel heating power cable includes a power cable main body, and a plurality of binding steel rings are distributed in a linear array on the outside of the power cable main body. The binding steel rings include two symmetrically distributed spliced ​​binding rings, and a binding plate is connected between the ends of the two spliced ​​binding rings. Both ends of the binding plate are fixed with plug-in binding blocks, and a rotating alignment rod is fixed at the bottom center of the binding plate. The rotating alignment rod is rotatably inserted between the ends of the two spliced ​​binding rings.

[0008] Preferably, the two plug-in restraint blocks at both ends of the same restraint plate are rotationally symmetrical around the center of the restraint plate, and the bottom ends of the plug-in restraint blocks are bent at ninety degrees.

[0009] Preferably, both end portions of the splicing restraint ring are provided with docking grooves, and the inner walls of the docking grooves are provided with docking holes.

[0010] Preferably, the inner diameter of the docking hole is consistent with the outer diameter of the plug-in restraint block, and the bottom end of the plug-in restraint block is plugged into the inner side of the docking hole.

[0011] Preferably, a guide block is bonded to the inner side of the docking groove, and the guide block is fan-shaped and has an inclined slope on its upper surface.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. Rotate the restraint plate used to connect the two spliced ​​restraint rings clockwise. When the restraint plate rotates clockwise, the bottom end of the plug-in restraint block will be separated from the docking hole, and the plug-in restraint block will slide along the inclined surface of the guide block. At this time, as the restraint plate rotates, the plug-in restraint block moves upward while making a circular motion around the center of the restraint plate until the rotation alignment rod at the bottom of the restraint plate is removed from between the two spliced ​​restraint rings, thereby realizing the separation of the two spliced ​​restraint rings. After the two spliced ​​restraint rings are separated, the power cable body can be disassembled to realize the recycling of the power cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the splicing restraint ring of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the utility model binding plate.

[0017] In the figure: 1. Power cable body; 2. Splicing restraint ring; 3. Docking groove; 4. Guide block; 5. Restraint plate; 6. Docking hole; 7. Plug-in restraint block; 8. Rotary alignment rod. DETAILED DESCRIPTION

[0018] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0019] like Figures 1 to 3 As shown, a plurality of binding steel rings are distributed in a linear array on the outside of the power cable body 1. The binding steel rings include two symmetrically distributed spliced ​​binding rings 2. A binding plate 5 is connected between the ends of the two spliced ​​binding rings 2. Both ends of the binding plate 5 are fixed with plug-in binding blocks 7. A rotating alignment rod 8 is fixed at the bottom center of the binding plate 5. The rotating alignment rod 8 is rotatably inserted between the ends of the two spliced ​​binding rings 2.

[0020] As the preferred technical solution of this embodiment, Figure 2 and Figure 3 As shown, the two plug-in restraint blocks 7 at both ends of the same restraint plate 5 are rotationally symmetrical around the center of the restraint plate 5, and the bottom end of the plug-in restraint block 7 is bent ninety degrees. A docking groove 3 is provided at both end ends of the splicing restraint ring 2, and a docking hole 6 is provided on the inner wall of the docking groove 3. The inner diameter of the docking hole 6 is consistent with the outer diameter of the plug-in restraint block 7. The bottom end of the plug-in restraint block 7 is inserted into the inner side of the docking hole 6, and the plug-in restraint block 7 at the end of the restraint plate 5 is inserted into the docking hole 6, so that the restraint plate 5 fixes the ends of the two splicing restraint rings 2, and the two splicing restraint rings 2 will not be easily separated after being connected.

[0021] A guide block 4 is bonded to the inner side of the docking groove 3. The guide block 4 is fan-shaped and has an inclined slope on its upper surface. The existence of the guide block 4 allows the plug-in restraint block 7 to fit the surface of the guide block 4 and move upward while rotating when the restraint plate 5 rotates.

[0022] Working principle: First, the power cable main body 1 is processed and prepared. After the power cable main body 1 is prepared, the two splicing restraint rings 2 are clamped on the outside of the power cable main body 1, and the ends of the two splicing restraint rings 2 are fitted together. Then, the plug-in restraint block 7 at the bottom end of the restraint plate 5 is in contact with the surface of the guide block 4, and the rotation alignment rod 8 in the middle of the bottom surface of the restraint plate 5 is inserted between the two splicing restraint rings 2. Then, the restraint plate 5 is rotated counterclockwise so that the rotation alignment rod 8 is screwed into the space between the two splicing restraint rings 2, and the plug-in restraint block 7 is fitted with the surface of the guide block 4 and slides close to the docking hole 6 until Until the bottom surface of the restraining plate 5 fits with the end of the splicing restraining ring 2, the bottom end of the plug-in restraining block 7 fixed at the bottom of the restraining plate 5 is plugged into the docking hole 6, and the restraining plate 5 and the two plug-in restraining blocks 7 are used to connect and fix the splicing restraining rings 2 with the two ends fitted with each other to complete the assembly of the aluminum-clad steel heating power cable. When the aluminum-clad steel heating power cable is to be recycled, it is only necessary to rotate the restraining plate 5 clockwise to separate the bottom end of the plug-in restraining block 7 from the docking hole 6 to complete the disassembly of the splicing restraining ring 2, and then disassemble the power cable body 1 to realize the disassembly and recycling of the aluminum-clad steel heating power cable.

[0023] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. An aluminum-clad steel heating power cable, comprising a power cable body (1), characterized in that: A plurality of binding steel rings are distributed in a linear array on the outer side of the power cable body (1), and the binding steel rings include two symmetrically distributed spliced ​​binding rings (2). A binding plate (5) is connected between the ends of the two spliced ​​binding rings (2). Both ends of the binding plate (5) are fixed with plug-in binding blocks (7). A rotation alignment rod (8) is fixed at the bottom center of the binding plate (5), and the rotation alignment rod (8) is rotatably inserted between the ends of the two spliced ​​binding rings (2).

2. The aluminum-clad steel heating power cable according to claim 1, characterized in that: The two plug-in restraint blocks (7) at both ends of the same restraint plate (5) are rotationally symmetrical around the center of the restraint plate (5), and the bottom ends of the plug-in restraint blocks (7) are bent at ninety degrees.

3. The aluminum-clad steel heating power cable according to claim 2, characterized in that: Both end portions of the splicing restraint ring (2) are provided with docking grooves (3), and the inner wall of the docking groove (3) is provided with docking holes (6).

4. The aluminum-clad steel heating power cable according to claim 3, characterized in that: The inner diameter of the docking hole (6) is consistent with the outer diameter of the plug-in restraint block (7), and the bottom end of the plug-in restraint block (7) is plugged into the inner side of the docking hole (6).

5. The aluminum-clad steel heating power cable according to claim 4, characterized in that: A guide block (4) is bonded to the inner side of the docking groove (3); the guide block (4) is fan-shaped and has an inclined slope on its upper surface.

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