CN214671927U

CN214671927U - Cable of extrusion damage is prevented in tensile

Info

Publication number: CN214671927U
Application number: CN202120900731.7U
Authority: CN
Inventors: 朱开发; 严永金; 冯国平
Original assignee: Jiangsu Hongkai Cable Co ltd
Current assignee: Jiangsu Hongkai Cable Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-11-09
Anticipated expiration: 2031-04-28

Abstract

The utility model belongs to the technical field of cables, and discloses a tensile anti-extrusion damage cable, which comprises an inner core layer, wherein a steel wire ring is fixed on the outer surface wall of the inner core layer, a central reinforcing rod is arranged at the middle position inside the inner core layer in a penetrating way, an inner sheath is arranged inside the inner core layer, conductors are fixed inside the inner sheath, an inner buffer layer is fixed between the inner sheath and the conductors, the outer surface wall of the central reinforcing rod is in an annular array connection with three parting beads, a limiting frame is arranged outside the parting beads, and the three parting beads separate each conductor, the cable damage can be effectively avoided, and the service life of the cable is prolonged.

Description

Cable of extrusion damage is prevented in tensile

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to extrusion damage's cable is prevented in tensile.

Background

The cable is made of one or more mutually insulated conductors and an outer insulation protective layer, electric power or information is transmitted to a lead at another position from one position, the cable is used as a main carrier of electric power transmission, the cable is widely applied to aspects of electric equipment, lighting circuits, household appliances and the like, the quality of the cable directly influences the engineering quality and the life and property safety of consumers, and the number of the used cables is gradually increased along with the rapid development of economy and society.

In chinese patent No. CN201920987357.1, a tensile anti-extrusion cable is disclosed, in which it is described that "the first and second dividing plates are made of hard plastic material, which can increase the strength of the cable", but the strength and tensile property of the conventional cable are poor, when the cable is pulled and pulled, the cable is easily damaged, and in addition, the buffering effect of the conventional cable is poor, and when the cable is pressed, the inner conductor of the cable is easily damaged by pressing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable of extrusion damage is prevented in tensile to the intensity that proposes traditional cable in solving above-mentioned background art is relatively poor with tensile strength, the easy problem of damaging when the cable pulls the tractive, and in addition, the buffering effect of traditional cable is relatively poor, and during cable pressurized, its inner conductor is the problem of damage by compression easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cable of extrusion damage is prevented in tensile, includes the inner core layer, the exterior wall of inner core layer is fixed with the steel wire winding, and the inside intermediate position department of inner core layer wears to be equipped with central stiffener, the inside of inner core layer still is equipped with the inner sheath, the inside of inner sheath is fixed with the conductor, and is fixed with interior buffer layer between inner sheath and the conductor, the outer table wall of central stiffener is annular array and is connected with three parting bead, the outside of parting bead is equipped with spacing frame, and is three the parting bead separates each conductor, the exterior wall of steel wire winding is fixed with outer insulating layer.

Preferably, the outer surface wall of the outer insulating layer is provided with an outer buffer layer, the outer buffer layer comprises an outer cushion layer, elastic columns and an inner cushion layer, and the elastic columns are connected between the outer cushion layer and the inner cushion layer at equal intervals.

Preferably, a tensile layer and a flame-retardant layer are arranged between the outer insulating layer and the outer buffer layer, and the flame-retardant layer is positioned on one side close to the outer insulating layer.

Preferably, the tensile layer is internally fixed with anti-drawing wires in an annular array, and twelve anti-drawing wires are fixed in total.

Preferably, an armor layer is fixed on the outer surface wall of the outer buffer layer, and wear-resistant protrusions are uniformly fixed on the outer surface wall of the armor layer.

Preferably, the limiting frame is of a regular pentagon structure, and the end part of the limiting frame penetrates through the outer insulating layer.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses an attach the steel wire winding and carry out tensile strength's reinforcing in the outside of inner core layer, and the cooperation through central stiffener, parting bead and spacing frame, can carry on spacingly to the conductor, can effectively increase the bulk strength and the tensile strength of this cable, when the cable pulls the tractive, can effectively avoid the cable to damage, prolonged the life of cable.

(2) The utility model discloses an utilize interior buffer layer parcel in the outside of conductor, can effectively cushion the protection in the inlayer of this cable, in addition, through addding the outer buffer layer that forms by outer bed course, elasticity post and interior bed course combination, can cushion the protection at the skin of this cable, when this cable pressurized, equidistant elasticity post pressurized compression, the too big pressure of reverse elasticity of production can effectively be cushioned, and then avoid the inner conductor to receive the extrusion and the deformation damage.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the outer buffer layer of the present invention;

in the figure: 1-an inner core layer; 2-an outer insulating layer; 3-a conductor; 4-a tensile layer; 5-wire drawing resistance; 6-a limit frame; 7-an inner buffer layer; 8-parting beads; 9-an inner sheath; 10-an outer buffer layer; 101-an outer cushion layer; 102-a resilient post; 103-inner cushion layer; 11-an armor layer; 12-a traveler; 13-a flame retardant layer; 14-wear resistant protrusions; 15-central reinforcing bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides the following technical solutions: a tensile cable capable of preventing extrusion damage comprises an inner core layer 1, a steel wire ring 12 is fixed on the outer surface wall of the inner core layer 1, a central reinforcing rod 15 penetrates through the middle position of the inner portion of the inner core layer 1, an inner sheath 9 is further arranged inside the inner core layer 1, conductors 3 are fixed inside the inner sheath 9, an inner buffer layer 7 is fixed between the inner sheath 9 and the conductors 3, the inner buffer layer 7 is wrapped outside the conductors 3 and can effectively perform buffer protection on the inner layer of the cable, three spacers 8 are connected to the outer surface wall of the central reinforcing rod 15 in an annular array mode, a limiting frame 6 is arranged outside the spacers 8, each conductor 3 is separated by the three spacers 8, an outer insulating layer 2 is fixed on the outer surface wall of the steel wire ring 12, tensile performance can be enhanced by attaching the steel wire ring 12 to the outer portion of the inner core layer 1, and the central reinforcing rod 15, the spacers 8 are matched with the limiting frame 6, can carry on spacingly to conductor 3, can effectively increase the bulk strength and the tensile strength of this cable, when the cable pulls the tractive, can effectively avoid the cable to damage, prolonged the life of cable.

Further, the outer wall of outer insulating layer 2 is equipped with outer buffer layer 10, and outer buffer layer 10 includes outer bed course 101, elastic column 102 and interior bed course 103, and elastic column 102 equidistant connection is between outer bed course 101 and interior bed course 103, and when this cable pressurized, equidistant elastic column 102 pressurized compression between outer bed course 101 and the interior bed course 103, the too big pressure of reverse elasticity effective buffering of production, and then avoid inner conductor 3 to receive the extrusion and deform the damage.

Further, be equipped with tensile layer 4 and fire-retardant layer 13 between outer insulating layer 2 and outer buffer layer 10, fire-retardant layer 13 is located the one side that is close to outer insulating layer 2, and tensile layer 4 can further increase tensile property, and fire-retardant layer 13 can improve the fire behaviour of this cable.

Furthermore, tensile wires 5 are fixed in the tensile layer 4 in an annular array mode, twelve tensile wires 5 are fixed in the tensile layer, the strength of the cable can be improved due to the fact that the tensile wires 5 are additionally arranged, and the tensile performance can be further improved.

Further, the outer surface wall of outer buffer layer 10 is fixed with armor 11, and the outer surface wall of armor 11 evenly is fixed with wear-resisting protruding 14, and armor 11 can improve the anti-bite performance of this cable, can avoid the rat and ant to bite, and wear-resisting protruding 14's add can improve the wear resistance of this cable.

Further, spacing frame 6 is regular pentagon structure, and the tip of spacing frame 6 runs through outer insulating layer 2, and spacing frame 6 can increase the stability of the installation of spacing frame 6 in penetrating insulating layer 2.

The utility model discloses a theory of operation and use flow: when the utility model is used, the inner buffer layer 7 is wrapped outside the conductor 3, the inner layer of the cable can be effectively protected by buffering, when the cable is pressed, the elastic columns 102 with equal intervals between the outer cushion layer 101 and the inner cushion layer 103 are pressed and compressed, the generated reverse elastic force can effectively buffer the overlarge pressure, thereby preventing the inner conductor 3 from being deformed and damaged by the extrusion, and furthermore, the tensile strength can be enhanced by attaching the bead rings 12 to the outside of the inner core layer 1, and by the cooperation of the central reinforcing bar 15, the division bars 8 and the spacing frames 6, the conductor 3 can be limited, the overall strength and tensile property of the cable can be effectively improved, when the cable pulls the tractive, can effectively avoid the cable to damage, in addition, armor 11 can improve the anti-bite performance of this cable, can avoid the rat ant to bite, and wear-resisting protruding 14 can improve the wear resistance of this cable.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cable of extrusion damage is prevented in tensile which characterized in that: including inner core layer (1), the exterior wall of inner core layer (1) is fixed with steel wire winding (12), and the inside intermediate position department of inner core layer (1) wears to be equipped with central stiffener (15), the inside of inner core layer (1) still is equipped with inner sheath (9), the inside of inner sheath (9) is fixed with conductor (3), and is fixed with interior buffer layer (7) between inner sheath (9) and conductor (3), the exterior wall of central stiffener (15) is the annular array and is connected with three parting bead (8), the outside of parting bead (8) is equipped with spacing frame (6), and is three parting bead (8) separate each conductor (3), the exterior wall of steel wire winding (12) is fixed with outer insulating layer (2).

2. A tensile crush-damage-resistant cable as claimed in claim 1, wherein: the outer surface wall of outer insulating layer (2) is equipped with outer buffer layer (10), outer buffer layer (10) include outer bed course (101), elasticity post (102) and interior bed course (103), elasticity post (102) equidistant connection is between outer bed course (101) and interior bed course (103).

3. A tensile crush-damage-resistant cable as claimed in claim 2, wherein: be equipped with tensile layer (4) and fire-retardant layer (13) between outer insulating layer (2) and outer buffer layer (10), fire-retardant layer (13) are located the one side that is close to outer insulating layer (2).

4. A tensile crush-damage-resistant cable as recited in claim 3, wherein: the tensile layer (4) is internally fixed with anti-drawing wires (5) in an annular array, and twelve anti-drawing wires (5) are fixed together.

5. A tensile crush-damage-resistant cable as claimed in claim 2, wherein: an armor layer (11) is fixed on the outer surface wall of the outer buffer layer (10), and wear-resistant protrusions (14) are uniformly fixed on the outer surface wall of the armor layer (11).

6. A tensile crush-damage-resistant cable as claimed in claim 1, wherein: the limiting frame (6) is of a regular pentagon structure, and the end part of the limiting frame (6) penetrates through the outer insulating layer (2).