CN203787148U

CN203787148U - Extrusion-resistance fireproof shielding cable

Info

Publication number: CN203787148U
Application number: CN201420129249.8U
Authority: CN
Inventors: 雷波
Original assignee: Hunan Anthem Information Technology Co Ltd
Current assignee: Hunan Anthem Information Technology Co Ltd
Priority date: 2014-03-21
Filing date: 2014-03-21
Publication date: 2014-08-20
Anticipated expiration: 2024-03-21

Abstract

The utility model discloses an extrusion-resistance fireproof shielding cable. An innermost layer is conductors formed through intertwisting tinned wires and aramid fibers. An insulating layer, a shielding layer and an inner sheath successively wrap each conductor. A solid flexible pipe is arranged in a gap formed by the adjacent inner sheaths. A mica tape wraps each inner sheath and cabling is performed. A braiding layer wraps the mica tape. A layer of steel spiral belt wraps the braiding layer. An outer sheath wraps the steel spiral belt. The composite conductors formed through intertwisting are arranged so as to increase a fireproof function and the solid flexible pipe is arranged to provide a buffer capability of extrusion and collision among the conductors. The steel spiral belt is arranged so as to increase bending durability and high-intensity pliability of the cable.

Description

A kind of anti-extrusion fire-proof shield cable

Technical field

The utility model relates to a kind of cable, is a kind of anti-extrusion fire-proof shield cable specifically.

Background technology

The existing construction of cable comprises many conductors, is coated on insulating barrier, braid and four parts of restrictive coating of each conductor outside, wherein, conductor and insulating barrier form insulated wire cores, braid is wrapped in the outside of many insulated wire cores, restrictive coating is coated on the outer surface of braid, the variation that cable can tolerate higher and lower temperature and can bear day and night temperature conventionally.But the situation that cable may be squeezed when transportation and use, the destruction that causes cable jacket breakage and internal structure, existing cable still can not be realized high crooked durability and high pliability simultaneously in addition, thereby has reduced the environmental suitability of cable.

Utility model content

Utility model object: in order to overcome the deficiencies in the prior art, the utility model provides a kind of anti-extrusion fire-proof shield cable.

For achieving the above object, the technical solution adopted in the utility model is a kind of anti-extrusion fire-proof shield cable, innermost layer is the stranded conductor forming of tin plated wire and aramid fiber, at each conductor, be coated with successively insulating barrier, screen and inner sheath outward, and be provided with solid flexible pipe in the formed space of adjacent inner sheath, described inner sheath is also coated with mica tape outward and by its stranding, and be coated with braid at mica tape, this braid is also coated with one deck steel hurricane band outward, and is coated with oversheath at steel hurricane band.

The utility model has adopted tin plated wire and the stranded conductor forming of aramid fiber, aramid fiber has effective fire-proof function, and solid flexible pipe is set to increase the buffering between each conductor in many places, reduce the immense pressure that extruding produces, and in oversheath, be provided with one deck steel hurricane band, to increase crooked endurance quality and the high-intensity pliability of cable.

As preferably, in order to increase the buffer capacity of solid flexible pipe, to can better protect conductor cable, described solid flexible pipe is the flexible pipe of foam or plastic cement.

As preferably, described insulating barrier is teflon insulation layer.

As preferably, described screen is tin plated wire screen.

As preferably, for a step more increases fireproofing of cable performance, described inner sheath and oversheath are flame-retardant silica gel sheath.

As preferably, described braid is proof copper-wire braided layer.

Beneficial effect: the utility model provides a kind of anti-extrusion fire-proof shield cable, the utility model is not only provided with the stranded composite conductor forming to increase fire-proof function, more being provided with solid flexible pipe provides the buffer capacity of the extrusion and collision between each conductor, and is provided with crooked endurance quality and high-intensity pliability that steel hurricane band increases cable.

Accompanying drawing explanation

Fig. 1 is the utility model structural section figure;

Fig. 2 is the utility model steel hurricane band schematic diagram.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further illustrated.

As shown in Figure 1, a kind of anti-extrusion fire-proof shield cable, innermost layer is the stranded conductor forming 1 of tin plated wire and aramid fiber, outside each conductor 1, be coated with successively insulating barrier 2, screen 3 and inner sheath 4, and be provided with solid flexible pipe 5 in the formed space of adjacent inner sheath 4, described inner sheath 4 is outer is also coated with mica tape 6 and by its stranding, and be coated with braid 7 at mica tape 6, outside this braid 7, be also coated with one deck steel hurricane band 8, and be coated with oversheath 9 at steel hurricane band 8.

As preferably, described solid flexible pipe 5 is the flexible pipe of foam or plastic cement.

As preferably, described insulating barrier 2 is teflon insulation layer.

As preferably, described screen 3 is tin plated wire screen.

As preferably, described inner sheath 4 and oversheath 9 are flame-retardant silica gel sheath.

As preferably, described braid 7 is proof copper-wire braided layer.

Adopt technique scheme, the utility model has adopted tin plated wire and the stranded conductor forming of aramid fiber, aramid fiber has effective fire-proof function, and solid flexible pipe is set to increase the buffering between each conductor in many places, reduce the immense pressure that extruding produces, and in oversheath, be provided with one deck steel hurricane band, to increase crooked endurance quality and the high-intensity pliability of cable.

Inner sheath in the utility model and oversheath all adopt the soft material of environment-friendly type to make, in order to avoid contaminated environment.

The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. an anti-extrusion fire-proof shield cable, it is characterized in that: innermost layer is the stranded conductor forming of tin plated wire and aramid fiber (1), outside each conductor (1), be coated with successively insulating barrier (2), screen (3) and inner sheath (4), and be provided with solid flexible pipe (5) in the formed space of adjacent inner sheath (4), described inner sheath (4) is outer is also coated with mica tape (6) and by its stranding, and be coated with braid (7) at mica tape (6), the outer one deck steel hurricane band (8) that is also coated with of this braid (7), and be coated with oversheath (9) at steel hurricane band (8).

2. anti-extrusion fire-proof shield cable according to claim 1, is characterized in that: described solid flexible pipe (5) is the flexible pipe of foam or plastic cement.

3. anti-extrusion fire-proof shield cable according to claim 1, is characterized in that: described insulating barrier (2) is teflon insulation layer.

4. anti-extrusion fire-proof shield cable according to claim 1, is characterized in that: described screen (3) is tin plated wire screen.

5. anti-extrusion fire-proof shield cable according to claim 1, is characterized in that: described inner sheath (4) and oversheath (9) are flame-retardant silica gel sheath.

6. anti-extrusion fire-proof shield cable according to claim 1, is characterized in that: described braid (7) is proof copper-wire braided layer.