CN209515275U - A kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cable - Google Patents

Abstract

The utility model discloses a kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cables, including cable body, the inside of the cable body, which is pasted, is connected with inorganic glass fibre band wrapping layer, low smoke, zero halogen external sheath layer is connected on the inside of the first ceramic polyolefin sheath, mica tape protective layer is connected on the inside of the low smoke, zero halogen external sheath layer, gear fire bed is placed on the inside of the fire proof heat-insulation layer, and Halogen insulating layer is connected on the inside of gear fire bed, the second ceramic polyolefin sheath is coated on the inside of the Halogen insulating layer, and second the innermost insert of ceramic polyolefin sheath core is installed, and the inside of core is placed with the second copper wire, the gear fire bed inlays the inner side for being mounted on metal fixing plate, protrusion is angularly distributed in the outer surface of the cable body.The environmentally protective new ceramics polyolefin multiple-limb fireproof cable is not only environmentally protective, and flameproof effect is significant, and core is not susceptible to bending deformation.

Description

A kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cable

Technical field

The utility model relates to fireproof cable technical fields, more points of environmentally protective new ceramics polyolefin specially a kind of Branch fireproof cable.

Background technique

Account for about the 30% of sum by the fire that the electrical causes such as cable short circuit, excess load, electrical equipment malfunction cause, electrically The frequency of fire and caused loss occupy first of all kinds of fire, in electrical fire, by the fire of cable initiation Account for about half, therefore the fire-retardant and fire safety problem people about cable increasingly pay attention to, and want to the fire-retardant and fire prevention of cable Ask also higher and higher.

Not only flameproof effect is unobvious for currently used ceramic polyolefin multiple-limb fireproof cable, but also core easily occurs Bending deformation, therefore, it is proposed that a kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cable, on solving The problem of stating middle proposition.

Utility model content

The purpose of this utility model is to provide a kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cable, with Solving the currently used ceramic polyolefin multiple-limb fireproof cable that above-mentioned background technique proposes, not only flameproof effect is unobvious, And core the problem of easily occuring bending and deformation.

To achieve the above object, the utility model provides the following technical solutions: a kind of environmentally protective new ceramics polyene Hydrocarbon multiple-limb fireproof cable, including cable body, the inside of the cable body, which is pasted, is connected with inorganic glass fibre band wrapping layer, and inorganic glass fibre With the first ceramic polyolefin sheath is coated on the inside of wrapping layer, it is connected on the inside of the ceramic polyolefin sheath Low smoke, zero halogen external sheath layer, and the inside of low smoke, zero halogen external sheath layer inlays and is equipped with the first copper wire, protects outside the low smoke, zero halogen It is connected with mica tape protective layer on the inside of jacket layer, and is connected with fire proof heat-insulation layer on the inside of mica tape protective layer, the anti-fire screen It is placed with gear fire bed on the inside of thermosphere, and keeps off on the inside of fire bed and is connected with Halogen insulating layer, the inside of the Halogen insulating layer applies It is wiped with the second ceramic polyolefin sheath, and the innermost insert of the second ceramic polyolefin sheath is equipped with core, and The inside of core is placed with the second copper wire, and the gear fire bed inlays the inner side for being mounted on metal fixing plate, the cable body Protrusion is angularly distributed in outer surface.

Preferably, thickness of the inorganic glass fibre with wrapping layer less than the first ceramic polyolefin sheath thickness, and The connection type of first ceramic polyolefin sheath and low smoke, zero halogen external sheath layer is to paste connection.

Preferably, the fire resistance rating of the fire proof heat-insulation layer be higher than gear fire bed fire resistance rating, and keep off fire bed be mounted on it is anti- Between fire screen thermosphere and metal fixing plate.

Preferably, the inside of the fire proof heat-insulation layer is double-layer vacuum structure, and the inside of fire proof heat-insulation layer is angularly divided It is furnished with gear fire bed.

Preferably, it is twisted the mode of pressing by concentric layers formula between the second copper wire monomer to be connected, and the second bronze medal The overall structure constituted between line monomer is in starriness.

Preferably, the vertical section shape of the protrusion is serrated structure, and protrusion is integrated with cable body.

Compared with prior art, the utility model has the beneficial effects that more points of the environmentally protective new ceramics polyolefin Branch fireproof cable is not only environmentally protective, and flameproof effect is significant, and core is not susceptible to bending deformation；

1. by being evenly arranged with protrusion in the outer rim of cable body, and the vertical section shape of protrusion is serrated structure, energy The tensile property for enough enhancing cable, extends its service life, this outer lug can play Wire support, ensure that core is separate Ground avoids electric wire and corrodes due to impregnating for a long time in wet earth's surface；

2. Halogen insulating layer is that ceramic polyolefin also has other than the characteristic for having low smoke halogen-free flame-retardant polyolefin Ceramic characteristics, and fireproof layer can be done, when ignition of cable, heat can be separated, avoid core and the second copper wire scaling loss, To play flameproof effect；

3. metal fixing plate can make core be not susceptible to bending deformation, the service life of cable is effectively extended, ceramics Change polyolefin sheath and low smoke, zero halogen external sheath layer, generates toxic and harmful gas in burning, meet environmentally protective It is required that.

Detailed description of the invention

Fig. 1 is the utility model front cutting structural schematic diagram；

Fig. 2 is the utility model side structure schematic view；

Fig. 3 is the utility model core schematic diagram of internal structure.

In figure: 1, cable body；2, inorganic glass fibre band wrapping layer；3, the first ceramic polyolefin sheath；4, outside low smoke, zero halogen Restrictive coating；5, the first copper wire；6, mica tape protective layer；7, fire proof heat-insulation layer；8, fire bed is kept off；9, Halogen insulating layer；10, the second pottery Porcelain polyolefin sheath；11, core；12, the second copper wire；13, metal fixing plate；14, raised.

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.

Please refer to Fig. 1-3, the utility model provides a kind of technical solution: a kind of environmentally protective new ceramics polyolefin is more It is protected outside branch's fireproof cable, including cable body 1, inorganic glass fibre band wrapping layer 2, the first ceramic polyolefin sheath 3, low smoke, zero halogen Jacket layer 4, the first copper wire 5, mica tape protective layer 6, fire proof heat-insulation layer 7, gear fire bed 8, Halogen insulating layer 9, the second ceramic polyene Hydrocarbon sheath 10, core 11, the second copper wire 12, metal fixing plate 13 and protrusion 14, the inside of cable body 1, which is pasted, is connected with inorganic glass Fibre ribbons wrapping layer 2, and inorganic glass fibre is coated with the first ceramic polyolefin sheath 3, inorganic glass fibre band with the inside of wrapping layer 2 Thickness of the thickness of wrapping layer 2 less than the first ceramic polyolefin sheath 3, and the first ceramic polyolefin sheath 3 and nothing The connection type of the low cigarette external sheath layer 4 of halogen is to paste connection, can protect to the second copper wire 12, be not easy to grind it Damage, the inside of the first ceramic polyolefin sheath 3 are connected with low smoke, zero halogen external sheath layer 4, and low smoke, zero halogen external sheath layer 4 Inside, which is inlayed, is equipped with the first copper wire 5, and the inside of low smoke, zero halogen external sheath layer 4 is connected with mica tape protective layer 6, and mica tape is protected The inside of sheath 6 is connected with fire proof heat-insulation layer 7, and the inside of fire proof heat-insulation layer 7 is double-layer vacuum structure, and fire proof heat-insulation layer 7 Gear fire bed 8 is angularly distributed in inside, and not it is easier that gear fire bed 8 is worn, the inside of fire proof heat-insulation layer 7 is placed with gear fire bed 8, and the inside for keeping off fire bed 8 is connected with Halogen insulating layer 9, the fire resistance rating of fire proof heat-insulation layer 7 is higher than the fire resisting etc. of gear fire bed 8 Grade, and keep off fire bed 8 and be mounted between fire proof heat-insulation layer 7 and metal fixing plate 13, it can be to gear fire bed 8 by metal fixing plate 13 It is fixed, the inside of Halogen insulating layer 9 is coated with the second ceramic polyolefin sheath 10, and in the second ceramic polyolefin The innermost insert of sheath 10 is equipped with core 11, and the inside of core 11 is placed with the second copper wire 12, and gear fire bed 8 inlays installation In the inner side of metal fixing plate 13, protrusion 14 is angularly distributed in the outer surface of cable body 1.

It is connected as being twisted the mode of pressing by concentric layers formula between 12 monomer of the second copper wire in Fig. 3, and the second copper wire The overall structure constituted between 12 monomers is in starriness, improves the electric conductivity of the cable.

The vertical section shape of protrusion 14 is serrated structure as shown in figure 1, and protrusion 14 is integrated with cable body 1, logical Crossing protrusion 14 can be avoided core 11 and directly contacts with ground.

Working principle: when using the environmentally protective new ceramics polyolefin multiple-limb fireproof cable, the outer rim of cable body 1 On be evenly arranged with protrusion 14, and the vertical section shape of protrusion 14 is serrated structure, enhances the tensile strength of the cable, prolongs Its service life is grown, this outer lug 14 can play Wire support, ensure that far from core 11 far from ground, avoid electric wire Corrode due to being impregnated for a long time in wet earth's surface, gear fire bed 8 is made of Ceramic silicon rubber, and Ceramic silicon rubber is a kind of new The polymer composite of type not by firing powdery ashes, and can form the armour of ceramic-like in the case where flame ablation Dress forms one layer of hard protective layer, so that protection circuit is not short-circuit, breaking, in the case of fire, ensures in certain time Electric power and communication it is unimpeded, win valuable rescue time to the maximum extent, reduce the injures and deaths of personnel and the loss of lives and properties, Since gear fire bed 8 is always between fire proof heat-insulation layer 7 and metal fixing plate 13, it is reversed that metal fixing plate 13 is applied to the external world one Active force effectively extends the service life of cable to ensure that core 11 is not susceptible to bending deformation, and the second ceramic is poly- Alkene sheath 10 and low smoke, zero halogen external sheath layer 4 generate toxic and harmful gas in burning, meet environmentally protective want It asks, Halogen insulating layer 9 is ceramic polyolefin, other than the characteristic for having low smoke halogen-free flame-retardant polyolefin, also has ceramics special Property, i.e., hard armour body section can generate uniform ceramic capillary after ablation, and ceramic capillary can not only do insulating layer, but also can be with Fireproof layer is done, when ignition of cable, heat can be separated, avoids 12 scaling loss of core 11 and the second copper wire, it is green that here it is this Colour circle protects the whole work process of new ceramics polyolefin multiple-limb fireproof cable, is not described in detail in this specification interior Appearance belongs to the prior art well known to professional and technical personnel in the field.

The standardized element that the utility model uses can commercially, shaped piece according to specification and attached drawing Record can carry out customized, the specific connection type of each part is all made of in the prior art mature bolt, rivet, weldering Equal conventional means are connect, mechanical, part and equipment are all made of in the prior art, conventional model, in addition circuit connection is using existing Conventional connection type in technology, this will not be detailed here.

Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims (6)

1. a kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cable, including cable body (1), it is characterised in that: described The inside of cable body (1), which is pasted, is connected with inorganic glass fibre band wrapping layer (2), and inorganic glass fibre on the inside of wrapping layer (2) with being coated with First ceramic polyolefin sheath (3) is connected with outside low smoke, zero halogen on the inside of the first ceramic polyolefin sheath (3) Restrictive coating (4), and the inside of low smoke, zero halogen external sheath layer (4) is inlayed and is equipped with the first copper wire (5), the low smoke, zero halogen oversheath It is connected with mica tape protective layer (6) on the inside of layer (4), and is connected with fire proof heat-insulation layer (7) on the inside of mica tape protective layer (6), It is placed with gear fire bed (8) on the inside of the fire proof heat-insulation layer (7), and keeps off on the inside of fire bed (8) and is connected with Halogen insulating layer (9), The second ceramic polyolefin sheath (10) is coated on the inside of the Halogen insulating layer (9), and in the second ceramic polyolefin The innermost insert of sheath (10) is equipped with core (11), and the inside of core (11) is placed with the second copper wire (12), the gear Fire bed (8) inlays the inner side for being mounted on metal fixing plate (13), and protrusion is angularly distributed in the outer surface of the cable body (1) (14)。

2. a kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cable according to claim 1, feature exist In the thickness of: thickness of the inorganic glass fibre with wrapping layer (2) less than the first ceramic polyolefin sheath (3), and the first pottery The connection type of porcelain polyolefin sheath (3) and low smoke, zero halogen external sheath layer (4) is to paste connection.

3. a kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cable according to claim 1, feature exist In: the fire resistance rating of the fire proof heat-insulation layer (7) is higher than the fire resistance rating of gear fire bed (8), and keeps off fire bed (8) and be mounted on anti-fire screen Between thermosphere (7) and metal fixing plate (13).

4. a kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cable according to claim 1, feature exist In: the inside of the fire proof heat-insulation layer (7) is double-layer vacuum structure, and gear is angularly distributed in the inside of fire proof heat-insulation layer (7) Fire bed (8).

5. a kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cable according to claim 1, feature exist In: the mode of pressing is twisted by concentric layers formula between the second copper wire (12) monomer and is connected, and the second copper wire (12) is single The overall structure constituted between body is in starriness.

6. a kind of environmentally protective new ceramics polyolefin multiple-limb fireproof cable according to claim 1, feature exist In: the vertical section shape of the protrusion (14) is serrated structure, and raised (14) are integrated with cable body (1).