CN208985748U - A kind of multicore stranded conductor fireproof cable - Google Patents

Abstract

The utility model discloses a kind of multicore stranded conductor fireproof cables, including core, the core is twisted by more copper wire, heat-insulated wrapping layer is enclosed on the outside of the core, inner sheath is enclosed on the outside of heat-insulated wrapping layer, flexible aluminium net set is provided on the inner wall of the oversheath, arc isolation sheet rubber is uniformly connected on the inner wall of flexible aluminium net set, arc isolation sheet rubber is fixedly connected on the outer wall of inner sheath far from one end of flexible aluminium net set, the arc groove central integration of the arc isolation sheet rubber has plantation rubber endless tube, a fireproof metal tightrope is inserted in each plantation rubber endless tube, the gap of the flexibility aluminium net set and inner sheath is filled with fireproof filling material.The fireproof cable so that the fireproofing of cable effect obtains significant portion raising, and can be improved the resistance to drawing ability of the cable, improve the integral strength of cable by setting multilayer insulation and fire proof construction, practical, be conducive to promote.

Description

A kind of multicore stranded conductor fireproof cable

Technical field

The utility model relates to field of cable technology, specially a kind of multicore stranded conductor fireproof cable.

Background technique

Currently, many modernize to obtain the important public place such as office building, hotel, market, subway, railway station, residential building Decoration is more and more luxurious, and the combustible used is more and more, and to prevent fire, the route of finishing must use fire protecting performance Excellent cable, to reduce fire damage.At present fireproof cable mostly use polyvinyl chloride add fire retardant manufacture sheath come into Row is fire-retardant, but this method makes cable cost substantial increase；Additionally, due to a large amount of halogens are contained in fire retardant, wire and cable exists A large amount of poison gas, acid mist and flue gas will be released when burning, not only threat to life is complete for these combustion products, pollutes environment, also The heavy corrosion that will cause equipment and building is withdrawn and is rescued property to fire extinguishing, fire-extinguishing and lifesaving and personnel and causes very big barrier Hinder；The poor defect of the existing generally existing flameproof effect of cable, safety is lower, for this purpose, it is proposed that a kind of multicore is twisted Conductor fireproof cable.

Utility model content

The purpose of this utility model is to provide a kind of multicore stranded conductor fireproof cables, to solve in above-mentioned background technique The problem of proposition.

To achieve the above object, the utility model provides the following technical solutions: a kind of multicore stranded conductor fireproof cable, packet Core is included, the core is twisted by more copper wire, and heat-insulated wrapping layer, the heat-insulated package are enclosed on the outside of the core The outside of layer is enclosed with inner sheath, and the outer sheath of the inner sheath is equipped with oversheath, and the inner wall of oversheath and inner sheath is outer Wall does not contact, and flexible aluminium net set is provided on the inner wall of the oversheath, is uniformly connected on the inner wall of the flexibility aluminium net set It is connected to arc isolation sheet rubber, the arc isolation sheet rubber is fixedly connected with far from one end of flexible aluminium net set in inner sheath On outer wall, the arc groove central integration of arc isolation sheet rubber has a plantation rubber endless tube, in each plantation rubber endless tube It is inserted with a fireproof metal tightrope, the gap of the flexibility aluminium net set and inner sheath is filled with fireproof filling material.

Preferably, the heat-insulated wrapping layer is set as masking foil, and at least three layers of the package number of plies of masking foil.

Preferably, the inner sheath and oversheath are disposed as ceramic silicon gum cover, and the internal diameter of the oversheath is greater than interior shield The thickness at least 2mm of the outer diameter of set at least 3mm, the inner sheath and oversheath.

Preferably, the arc isolation sheet rubber is disposed as soft rubber piece, and the quantity of arc isolation sheet rubber is extremely It is provided with eight less, the diameter of the fireproof metal tightrope is respectively less than 2mm.

Compared with prior art, the utility model has the beneficial effects that the structure design of the utility model is reasonable, which is twisted Close conductor fireproof cable, by the outside of core be arranged heat-insulated wrapping layer, inner sheath, flexible aluminium net set, fireproof filling material with And oversheath multilayer insulation and fire proof construction, so that the fireproofing of cable effect obtains significant portion raising, the fire prevention gold of setting Fire resisting fireproofing function can not only be played by belonging to tightrope, but also the resistance to drawing ability of the cable can be improved, and improve the entirety of cable Intensity, it is practical, it is conducive to promote.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is structure enlargement diagram at A in the utility model Fig. 1.

In figure: core 1, heat-insulated wrapping layer 2, inner sheath 3, oversheath 4, flexible aluminium net set 5, fireproof filling material 6, arc every From sheet rubber 7, plantation rubber endless tube 8, fireproof metal tightrope 9.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of multicore stranded conductor fireproof cable, including Core 1, core 1 are twisted by more copper wire, and the outside of core 1 is enclosed with heat-insulated wrapping layer 2, and heat-insulated wrapping layer 2 is set as Masking foil, and at least three layers of the package number of plies of masking foil, masking foil has good heat resistance and thermal insulation, heat-insulated wrapping layer 2 outside is enclosed with inner sheath 3, and the outer sheath of inner sheath 3 is equipped with oversheath 4, and the inner wall of oversheath 4 and inner sheath 3 is outer Wall does not contact, and inner sheath 3 and oversheath 4 are disposed as ceramic silicon gum cover, and the internal diameter of oversheath 4 is greater than the outer diameter of inner sheath 3 extremely The thickness at least 2mm of rare 3mm, inner sheath 3 and oversheath 4 is provided with flexible aluminium net set on the inner wall of oversheath 4 5, arc isolation sheet rubber 7 is uniformly connected on the inner wall of flexible aluminium net set 5, and sheet rubber 7 is isolated far from flexible aluminium net set 5 in arc One end be fixedly connected on the outer wall of inner sheath 3, arc isolation sheet rubber 7 is disposed as soft rubber piece, and arc every Quantity from sheet rubber 7 is at least provided with eight, and the diameter of fireproof metal tightrope is respectively less than 2mm, and the arc of sheet rubber 7 is isolated in arc Shape slot central integration has plantation rubber endless tube 8, and a fireproof metal tightrope 9 is inserted in each plantation rubber endless tube 8, flexible Aluminium net set 5 and the gap of inner sheath 3 are filled with fireproof filling material 6；The multicore stranded conductor fireproof cable, by core 1 outside is arranged heat-insulated wrapping layer 2, inner sheath 3, flexible aluminium net set 5, fireproof filling material 6 and 4 multilayer insulation of oversheath and prevents Fiery structure, so that the fireproofing of cable effect obtains significant portion raising, the fireproof metal tightrope 9 of setting can not only play resistance to Fiery fireproofing function, and the resistance to drawing ability of the cable can be improved, improve the integral strength of cable.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of multicore stranded conductor fireproof cable, including core (1), core (1) the You Duogen copper wire is twisted, special Sign is: being enclosed with heat-insulated wrapping layer (2) on the outside of the core (1), is enclosed with interior shield on the outside of the heat-insulated wrapping layer (2) It covers (3), the outer sheath of the inner sheath (3) is equipped with oversheath (4), and the inner wall of oversheath (4) and the outer wall of inner sheath (3) are not Contact, is provided with flexible aluminium net set (5) on the inner wall of the oversheath (4), on the inner wall of the flexibility aluminium net set (5) Even to be connected with arc isolation sheet rubber (7), the one end of arc isolation sheet rubber (7) far from flexible aluminium net set (5) is fixed It is connected on the outer wall of inner sheath (3), the arc groove central integration of arc isolation sheet rubber (7) has plantation rubber endless tube (8), a fireproof metal tightrope (9), the flexibility aluminium net set (5) and inner sheath are inserted in each plantation rubber endless tube (8) (3) gap is filled with fireproof filling material (6).

2. a kind of multicore stranded conductor fireproof cable according to claim 1, it is characterised in that: the heat-insulated wrapping layer (2) masking foil, and at least three layers of the package number of plies of masking foil are set as.

3. a kind of multicore stranded conductor fireproof cable according to claim 1, it is characterised in that: the inner sheath (3) and Oversheath (4) is disposed as ceramic silicon gum cover, and the internal diameter of the oversheath (4) is greater than the outer diameter at least 3mm of inner sheath (3), The thickness at least 2mm of the inner sheath (3) and oversheath (4).

4. a kind of multicore stranded conductor fireproof cable according to claim 1, it is characterised in that: rubber is isolated in the arc Piece (7) is disposed as soft rubber piece, and the quantity of arc isolation sheet rubber (7) is at least provided with eight, the fireproof metal The diameter of tightrope is respectively less than 2mm.