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CN-224217279-U - Easily-stripped copper-cored aluminum stranded wire

CN224217279UCN 224217279 UCN224217279 UCN 224217279UCN-224217279-U

Abstract

The utility model discloses an easily-stripped copper-cored aluminum stranded wire, and relates to the technical field of stranded wires. The copper-cored aluminum stranded wire comprises a copper-cored aluminum stranded wire body and an insulating layer coated on the outer side of the copper-cored aluminum stranded wire body, wherein a spiral winding cutting line is arranged between the copper-cored aluminum stranded wire body and the insulating layer, the cutting line extends along the axial direction of the copper-cored aluminum stranded wire body and is consistent with the length of the copper-cored aluminum stranded wire body, a saw tooth structure is formed on the surface of the cutting line, and tooth tips of the saw tooth structure face the inner wall of the insulating layer. When the copper-cored aluminum strand is used, the spiral winding cutting line generates rotary cutting force during traction, the tooth tips of the sawtooth structures penetrate into the inner wall of the insulating layer to form continuous cuts, so that the insulating layer is cracked along the circumferential direction, nondestructive stripping is realized, the copper-cored aluminum strand is convenient to use, and damage to the copper-cored aluminum strand body is avoided, so that the copper-cored aluminum strand is more practical.

Inventors

  • Geng Peiqiang

Assignees

  • 四川超达电缆制造有限公司

Dates

Publication Date
20260508
Application Date
20250515

Claims (8)

  1. 1. The utility model provides an easy-to-strip copper-cored aluminum stranded conductor, includes copper-cored aluminum stranded conductor body (1) and cladding at insulating layer (2) of its outside, a serial communication port, be provided with spiral winding's cutting line (3) between copper-cored aluminum stranded conductor body (1) and insulating layer (2), cutting line (3) follow copper-cored aluminum stranded conductor body (1) axial extension and unanimous rather than length, cutting line (3) surface construction has sawtooth structure (4), and the tooth point of sawtooth structure (4) is towards insulating layer (2) inner wall.
  2. 2. The easy-to-peel copper-cored aluminum strand according to claim 1, wherein the outer surface of the insulating layer (2) is provided with a marking tape (5) corresponding to the position of the cutting line (3).
  3. 3. The easy-to-peel copper-cored aluminum strand according to claim 1, wherein the inner wall of the insulating layer (2) is provided with a spiral groove (6), and the cutting lines (3) are embedded in the spiral groove (6) and distributed in a non-contact manner with the copper-cored aluminum strand body (1).
  4. 4. An easily strippable copper-cored aluminum strand according to claim 3, wherein a biodegradable bonding layer (7) is arranged between the copper-cored aluminum strand body (1) and the cutting line (3).
  5. 5. An easily strippable copper-cored aluminum strand according to claim 3, wherein the cross section of the spiral groove (6) is trapezoidal, and the width of the notch of the spiral groove (6) is smaller than the width of the groove bottom.
  6. 6. An easily strippable copper-cored aluminum strand according to claim 3, wherein the cutting line (3) is formed by connecting a plurality of sections of molybdenum wires (301) in series through flexible connectors (302).
  7. 7. The easy-to-peel copper-cored aluminum strand according to claim 1, wherein a plurality of annular weakening grooves (8) are formed on the outer surface of the insulating layer (2), and the annular weakening grooves (8) and the cutting lines (3) are orthogonally distributed.
  8. 8. The easy-to-peel copper-cored aluminum strand according to claim 7, wherein the annular weakening groove (8) has a V-shaped cross section and an arc-shaped groove bottom.

Description

Easily-stripped copper-cored aluminum stranded wire Technical Field The utility model relates to the technical field of stranded wires, in particular to an easily-stripped copper-cored aluminum stranded wire. Background The stranded wire is formed by winding stranded single wires around a stranded wire shaft, copper and aluminum are commonly used, wherein the core material of the aluminum stranded wire is usually a steel core or a copper core, when the copper-cored aluminum stranded wire is used indoors, an insulating layer is required to be coated outside, insulating and isolating effects are achieved, service life and safety are improved, when the copper-cored aluminum stranded wire coated with the insulating layer is scrapped and recovered, the insulating layer is required to be stripped, the copper-cored aluminum stranded wire is taken out, in the prior art, mechanical pressing is commonly adopted for stripping, the insulating layer is cut through a cutting wheel, the copper-cored aluminum stranded wire is pulled out manually, the mode is time-consuming and labor-consuming, and the copper-cored aluminum stranded wire is easy to crush, so that the copper-cored aluminum stranded wire is easy to strip. Disclosure of utility model The utility model aims to solve the technical problems that the stripping is usually carried out by adopting mechanical pressing, an insulating layer is cut through a cutting wheel, and then a copper-cored aluminum stranded wire is pulled out manually, so that the method is time-consuming and labor-consuming, and the copper-cored aluminum stranded wire is easy to crush. The utility model adopts the following technical scheme for realizing the purposes: The utility model provides an easy-to-strip copper-cored aluminum stranded conductor, includes copper-cored aluminum stranded conductor body and cladding at the insulating layer of its outside, be provided with spiral winding's cutting line between copper-cored aluminum stranded conductor body and the insulating layer, the cutting line extends and is unanimous rather than length along copper-cored aluminum stranded conductor body axial, the cutting line surface structure has the sawtooth structure, and the tooth point of sawtooth structure is towards the insulating layer inner wall. Further, the outer surface of the insulating layer is provided with a marking belt corresponding to the cutting line. Further, the inner wall of the insulating layer is provided with a spiral groove, and the cutting lines are embedded in the spiral groove and distributed in a non-contact mode with the copper-cored aluminum stranded wire body. Further, a biodegradable bonding layer is arranged between the copper-cored aluminum strand body and the cutting line. Further, the cross section of the spiral groove is trapezoid, and the width of the notch of the spiral groove is smaller than the width of the groove bottom. Further, the cutting line is formed by connecting a plurality of sections of molybdenum wires in series through flexible connecting pieces. Further, the outer surface of the insulating layer is provided with a plurality of annular weakening grooves, and the annular weakening grooves and the cutting lines are distributed in an orthogonal mode. Further, the cross section of the annular weakening groove is V-shaped, and the groove bottom is arc-shaped. The utility model has the beneficial effects that when in use, the spiral winding cutting line generates rotary cutting force during traction, the tooth tips of the sawtooth structure penetrate into the inner wall of the insulating layer to form continuous cuts, so that the insulating layer is cracked along the circumferential direction, nondestructive stripping is realized, the use is convenient, and the damage to the copper-cored aluminum stranded wire body is avoided, so that the copper-cored aluminum stranded wire has practicability. Drawings FIG. 1 is a perspective view of the structure of the present utility model; FIG. 2 is a perspective cross-sectional view of the present utility model; FIG. 3 is an enlarged view of the utility model at A in FIG. 2; FIG. 4 is an enlarged view of the utility model at A in FIG. 2; FIG. 5 is a perspective view of a portion of the structure of the present utility model; fig. 6 is an enlarged view of the present utility model at C in fig. 5. The steel wire reinforced plastic composite cable comprises a copper-cored aluminum stranded wire body, an insulating layer, a cutting wire, 301, molybdenum wires, 302, a flexible connecting piece, 4, a sawtooth structure, 5, a marking belt, 6, a spiral groove, 7, a biodegradable bonding layer and 8, and an annular weakening groove. Detailed Description In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanyin