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CN-224217278-U - High-toughness bending-resistant cable

CN224217278UCN 224217278 UCN224217278 UCN 224217278UCN-224217278-U

Abstract

The application belongs to the technical field of cables, and discloses a high-toughness bending-resistant cable which comprises an outer sheath layer, wherein a compression-resistant layer is arranged in the outer sheath layer, a bending-resistant layer is arranged in the compression-resistant layer, an insulating layer is arranged in the bending-resistant layer, an inner sheath layer is arranged in the insulating layer, an elastic tube is arranged in the inner sheath layer, a flame-retardant filling layer is arranged between the outer side of the elastic tube and the inner sheath layer, a core sleeve is wrapped in the flame-retardant filling layer, and a wire core is arranged in the core sleeve. According to the application, through the outer sheath layer, the compression-resistant layer, the bending-resistant layer, the insulating layer, the inner sheath layer, the flame-retardant filling layer, the elastic tube, the core sleeve and the wire core, the toughness and the elasticity of the inside and the outside of the cable are improved, the flame retardance and the heat resistance of the cable are improved, the cable is prevented from being damaged or broken due to external force, and the service life of the cable is prolonged.

Inventors

  • WU YANLEI
  • WU YANQIANG
  • QIU PENGCHAO

Assignees

  • 北京市昆仑线缆制造有限公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (8)

  1. 1. The high-toughness bending-resistant cable comprises an outer sheath layer (1) and is characterized in that a compression-resistant layer (2) is arranged in the outer sheath layer (1), a bending-resistant layer (3) is arranged in the compression-resistant layer (2), an insulating layer (4) is arranged in the bending-resistant layer (3), an inner sheath layer (5) is arranged in the insulating layer (4), an elastic tube (7) is arranged in the inner sheath layer (5), a flame-retardant filling layer (6) is arranged between the outer side of the elastic tube (7) and the inner sheath layer (5), a core sleeve (8) is wrapped in the flame-retardant filling layer (6), and a wire core (81) is arranged in the core sleeve (8).
  2. 2. The high-toughness bending-resistant cable according to claim 1, wherein the outer sheath layer (1) and the inner sheath layer (5) are made of a fluorinated ethylene propylene material.
  3. 3. The high-toughness bending-resistant cable according to claim 1, wherein strip-shaped wear-resistant protrusions (11) which are distributed in a spiral mode are arranged on the outer wall of the outer sheath layer (1), and the wear-resistant protrusions (11) are rubber structural ribs.
  4. 4. The high-toughness bending-resistant cable according to claim 1, wherein the flame-retardant filling layer (6) is phenolic foam.
  5. 5. The high-toughness bending-resistant cable according to claim 1, wherein an elastic filling layer (21) is arranged in the compression-resistant layer (2), a plurality of elastic rubber plates (22) are arranged in the elastic filling layer (21), the elastic rubber plates (22) are arc-shaped, the elastic rubber plates (22) are uniformly distributed along the circumference in an array mode, and the elastic filling layer (21) is made of vulcanized rubber.
  6. 6. The high-toughness bending-resistant cable according to claim 1, wherein a reinforcing net (31) is arranged in the bending-resistant layer (3), and the reinforcing net (31) is a galvanized copper woven net.
  7. 7. The high-toughness bending-resistant cable according to claim 1, wherein the elastic tube (7) is internally provided with reinforcing ribs (71), the reinforcing ribs (71) are high-polymer nylon fiber stranded wires, and the elastic tube (7) is an insulating ethylene propylene rubber tube.
  8. 8. The high-toughness bending-resistant cable according to claim 1, wherein the insulating layer (4) is a crosslinked polyethylene layer.

Description

High-toughness bending-resistant cable Technical Field The utility model relates to the technical field of cables, in particular to a high-toughness bending-resistant cable. Background A power cable is a cable for transmitting electrical energy from a power source (e.g., a wall socket or power plug) to an electronic device or apparatus for supplying power, and is typically composed of conductors, insulating materials, and a protective outer layer. The Chinese patent publication No. CN202123300476.1 discloses a bending-resistant high-flame-retardance coaxial cable, which comprises a core wire layer, an insulating layer, a first oblique cladding layer, a second oblique cladding layer and an outer coating layer which are coaxially arranged from inside to outside. The cable is extruded and bent frequently in the use process, and the cable is damaged or broken due to insufficient strength or low toughness in the extrusion and bending processes, so that potential safety hazards exist and the service life of the cable is influenced. Disclosure of utility model In order to solve the problems, the utility model provides a high-toughness bending-resistant cable. The technical aim of the utility model is achieved through the following technical scheme that the high-toughness bending-resistant cable comprises an outer sheath layer, wherein a compression-resistant layer is arranged in the outer sheath layer, a bending-resistant layer is arranged in the compression-resistant layer, an insulating layer is arranged in the bending-resistant layer, an inner sheath layer is arranged in the insulating layer, an elastic tube is arranged in the inner sheath layer, a flame-retardant filling layer is arranged between the outer side of the elastic tube and the inner sheath layer, a core sleeve is wrapped in the flame-retardant filling layer, and a wire core is arranged in the core sleeve. Through adopting above-mentioned technical scheme, through oversheath layer, compressive layer, resistant layer, insulating layer, inner sheath layer, fire-retardant filling layer, elastic tube, core cover and the sinle silk that set up, improved toughness and elasticity outside the cable, improve fire-retardant and the heat-resisting ability of cable simultaneously, avoid the cable because external force is damaged or is broken, improved the life of cable. Furthermore, the outer sheath layer and the inner sheath layer are made of a perfluoroethylene propylene polymer material. Through adopting above-mentioned technical scheme, through setting up outer sheath layer and the inner sheath layer that the perfluoroethylene propylene material was made, make the cable possess higher incombustible performance, more fully satisfy cable fire prevention fire-retardant efficiency, have more reliable shielding interference immunity. Further, the outer wall of the outer sheath layer is provided with strip-shaped wear-resistant protrusions distributed in a spiral mode, and the wear-resistant protrusions are rubber structural ribs. Through adopting above-mentioned technical scheme, through setting up the wear-resisting arch that constitutes at outer sheath layer outer wall rubber structure muscle, improve the outside wear resistance of cable, the toughness in reinforcing cable outside simultaneously. Further, the flame-retardant filling layer is phenolic foam. Through adopting above-mentioned technical scheme, through setting up the fire-retardant filling layer that phenolic foam constitutes, strengthened the inside fire-resistant effect of cable, improve the fire-resistant ability of cable. Further, the inside of compressive layer is provided with the elasticity filling layer, the inside of elasticity filling layer is provided with a plurality of elastic rubber board, the elastic rubber board is the arc, a plurality of elastic rubber board is along circumference even array distribution, the elasticity filling layer is vulcanized rubber material. Through adopting above-mentioned technical scheme, through setting up the elasticity filling layer that vulcanized rubber material constitutes, for the cable is inside to provide high elasticity and high heat resistance, avoid the cable to receive the extrusion and damage, through setting up the elasticity rubber slab that distributes along circumference even array, increased the toughness of cable, the cable is more resistant to buckle, the effectual phenomenon of preventing the cable to appear the rupture in the use. Further, a reinforcing net is arranged in the bending-resistant layer, and the reinforcing net is a galvanized copper woven net. Through adopting above-mentioned technical scheme, through the resistant layer of buckling and galvanized copper mesh grid that set up, improve shielding effect when having improved the bulk strength of cable. Further, the inside of elastic tube is provided with the strengthening rib, the strengthening rib is high polymer nylon fiber stranded conductor, the elastic tube is insula