CN216212438U

CN216212438U - Anti-drop high-flame-retardant environment-friendly power cable

Info

Publication number: CN216212438U
Application number: CN202122375503.5U
Authority: CN
Inventors: 沈伟佳; 郭克钢
Original assignee: Shenzhen Deep Cable Technology Co ltd
Current assignee: Shenzhen Deep Cable Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-04-05
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses an anti-falling high-flame-retardant environment-friendly power cable which comprises an insulating outer sheath, wherein a polyethylene insulating layer is arranged on the outer side of a conductor, a mica tape layer is wrapped on the outer side of the polyethylene insulating layer, a filling layer is filled among a plurality of conductors, an insulating inner sheath is wrapped on the outer side of the filling layer, a connecting bulge is designed on the inner side of the insulating inner sheath, a circle of metal mesh layer is designed on the connecting bulge, the integrity of the filling layer is improved, cracking is avoided, and in addition, a circle of elastic buffer groove is designed in the insulating inner sheath, so that after the cable is extruded, the elastic buffer groove can play a buffer role, and the deformation degree of the cable is reduced; the outer side of the insulating outer sheath is provided with the plurality of protruding rings, the protruding rings are provided with the pair of through holes in a penetrating mode, the traction metal wire can penetrate through the through holes, the traction metal wire and the cable are firmly connected, and the situation that the traction metal wire cannot be separated from the cable is convenient to pull.

Description

Anti-drop high-flame-retardant environment-friendly power cable

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to an anti-drop high-flame-retardant environment-friendly power cable.

Background

Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like. Present cable is at the in-process of using, and the cable receives can be flattened after the extrusion and warp, leads to inside filling layer to split, and the cable is when the threading in addition, and cable itself is comparatively smooth, drops easily when the wire of threading usefulness and cable junction, and the threading is comparatively troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-drop high-flame-retardant environment-friendly power cable to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a drop-proof high flame-retardant environment-friendly power cable comprises an insulating outer sheath, a polyethylene insulating layer is arranged outside a conductor, the outer side of the polyethylene insulating layer is wrapped with a mica tape layer, a filling layer is filled among a plurality of conductors, the outer side of the filling layer is wrapped with an insulating inner sheath, a circle of elastic buffer slots are arranged in the insulating inner sheath at equal intervals, a circle of connecting bulges are equidistantly arranged on the inner side surface of the insulating inner sheath, the same metal mesh layer is fixedly arranged on the circle of connecting bulges, and the metal mesh layer is embedded into the filling layer, the outer side of the insulating inner sheath is provided with an insulating outer sheath, the steel belt is arranged between the insulating outer sheath and the insulating inner sheath, a plurality of protruding rings are arranged on the outer surface of the insulating outer sheath at equal intervals, and a pair of through holes are symmetrically formed in the edges of the protruding rings.

Preferably, the bulge ring and the insulating outer sheath are of an integrated structure, and a metal ring layer is arranged inside the bulge ring.

Preferably, the cross section of the connecting protrusion is of a T-shaped structure, and the connecting protrusion and the insulating inner sheath are of an integrally formed integrated structure.

Preferably, the thickness of the insulating inner sheath is equal to or more than that of the insulating outer sheath, the elastic buffer groove is of a rectangular groove structure, and the inner side surface of the elastic buffer groove is provided with a wavy fold-shaped structure.

Preferably, the outer surfaces of the insulating outer sheath and the protruding ring are both provided with a flame retardant layer.

Compared with the prior art, the utility model has the beneficial effects that: in addition, a circle of elastic buffer groove is designed in the insulating inner sheath, so that after the cable is extruded, the elastic buffer groove can play a role in buffering, and the deformation degree of the cable is reduced; the outer side of the insulating outer sheath is provided with the plurality of protruding rings, the protruding rings are provided with the pair of through holes in a penetrating mode, the traction metal wire can penetrate through the through holes, the traction metal wire and the cable are firmly connected, and the situation that the traction metal wire cannot be separated from the cable is convenient to pull.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

in the figure: 1. an insulating outer sheath; 2. a steel belt; 3. an insulating inner sheath; 4. an elastic buffer slot; 5. a metal mesh layer; 6. a connecting projection; 7. a polyethylene insulating layer; 8. a raised ring; 9. a conductor; 10. a mica tape layer; 11. a through hole; 12. and (5) filling the layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 2, the present invention provides a technical solution: a high fire-retardant environmental protection power cable of anticreep type, including insulating oversheath 1, the outside of conductor 9 is provided with a polyethylene insulating layer 7, the outside parcel of polyethylene insulating layer 7 has a mica tape layer 10, it is provided with filling layer 12 to pack between a plurality of conductors 9, the outside parcel of filling layer 12 has an insulating inner sheath 3, the inside equidistance of insulating inner sheath 3 is provided with a circle of elastic buffer slot 4, play the effect of buffering, the inboard surface equidistance of insulating inner sheath 3 is provided with a circle of connection arch 6, the fixed same metal mesh layer 5 that is provided with on the circle of connection arch 6, and metal mesh layer 5 imbeds in filling layer 12, prevent that filling layer 12 from receiving the condition emergence of extrusion fracture, the outside of insulating inner sheath 3 is provided with an insulating oversheath 1, be provided with steel band 2 between insulating oversheath 1 and the insulating inner sheath 3, the surface of insulating oversheath 1 is provided with a plurality of protruding rings 8, a pair of through holes 11 are symmetrically formed in the edge of the protruding ring 8, and a cable can be threaded through the through holes 11 in order to pull a metal wire conveniently.

In this embodiment, preferably, the protrusion ring 8 and the insulating outer sheath 1 are of an integrated structure, and in order to ensure good integrity, a metal ring layer is arranged inside the protrusion ring 8, so as to ensure good support.

In this embodiment, it is preferable that the cross-sectional shape of the connecting protrusion 6 is a T-shaped structure, and the connecting protrusion 6 and the insulating inner sheath 3 are an integral structure formed integrally, so as to ensure integrity.

In this embodiment, preferably, the thickness of the inner insulating sheath 3 is 1.5 times of the thickness of the outer insulating sheath 1, the shape of the elastic buffer groove 4 is a rectangular groove structure, and the inner side surface of the elastic buffer groove 4 is provided with a wavy corrugated structure, so as to achieve a good buffering effect.

In this embodiment, preferably, the outer surfaces of the insulating outer sheath 1 and the protruding ring 8 are both provided with a flame retardant layer, so as to perform a flame retardant function.

The working principle and the using process of the utility model are as follows: the inner side of the insulating inner sheath 3 is provided with a connecting bulge 6, and the connecting bulge 6 is provided with a circle of metal net layer 5, so that the integrity of the filling layer 12 is improved, and cracking is avoided; a plurality of protruding rings 8 are designed on the outer side of the insulating outer sheath 1, a pair of through holes 11 are designed on the protruding rings 8 in a penetrating mode, and therefore the traction metal wire can penetrate through the through holes 11, the traction metal wire is firmly connected with a cable, and the situation that the traction metal wire cannot be separated from the cable can be pulled conveniently.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high fire-retardant environmental protection power cable of anticreep type, includes insulating oversheath (1) and conductor (9), the outside of conductor (9) is provided with one deck polyethylene insulation layer (7), the outside parcel of polyethylene insulation layer (7) has one deck mica tape layer (10), and the packing is provided with filling layer (12) between a plurality of conductor (9), the outside parcel of filling layer (12) has one deck insulating inner sheath (3), the outside of insulating inner sheath (3) is provided with one deck insulating oversheath (1), be provided with steel band (2), its characterized in that between insulating oversheath (1) and insulating inner sheath (3): the inner side of the insulating inner sheath (3) is equidistantly provided with a circle of elastic buffer grooves (4), the inner side surface of the insulating inner sheath (3) is equidistantly provided with a circle of connecting protrusions (6) and a circle of metal mesh layers (5) which are fixedly arranged on the connecting protrusions (6), the metal mesh layers (5) are embedded into the filling layer (12), the outer surface of the insulating outer sheath (1) is equidistantly provided with a plurality of protruding rings (8), and the edge of each protruding ring (8) is symmetrically provided with a pair of through holes (11).

2. The anti-drop high-flame-retardant environment-friendly power cable according to claim 1, characterized in that: the protruding ring (8) and the insulating outer sheath (1) are of an integrated structure, and a metal ring layer is arranged inside the protruding ring (8).

3. The anti-drop high-flame-retardant environment-friendly power cable according to claim 1, characterized in that: the cross-sectional shape of the connecting bulge (6) is of a T-shaped structure, and the connecting bulge (6) and the insulating inner sheath (3) are of an integrally formed integrated structure.

4. The anti-drop high-flame-retardant environment-friendly power cable according to claim 1, characterized in that: the thickness of the insulating inner sheath (3) is 1.5 times of that of the insulating outer sheath (1), the elastic buffer groove (4) is of a rectangular groove structure, and the inner side surface of the elastic buffer groove (4) is provided with a wavy fold structure.

5. The anti-drop high-flame-retardant environment-friendly power cable according to claim 1, characterized in that: the outer surfaces of the insulating outer sheath (1) and the protruding ring (8) are provided with a flame-retardant layer.