CN213366242U

CN213366242U - Flexible fireproof cable of armor sheath

Info

Publication number: CN213366242U
Application number: CN202021917656.7U
Authority: CN
Inventors: 孙锋
Original assignee: Wuxi Chili Cable Technology Co ltd
Current assignee: Jiangsu chili Cable Co.,Ltd.
Priority date: 2020-09-05
Filing date: 2020-09-05
Publication date: 2021-06-04
Anticipated expiration: 2030-09-05

Abstract

The utility model discloses a flexible fireproof cable of armor sheath, including cable core and silicon rubber oversheath layer, the fixed cladding of cable core has the polypropylene guipure around the covering, the polypropylene guipure has silicon rubber inner sheath layer around the fixed cladding on the covering, fixed cladding has the fire-retardant layer of glass fiber cloth on the inner wall of stainless steel embossing armor sheath layer, be equipped with the bleeder vent on the silicon rubber oversheath layer. The device gives consideration to the heat dissipation, flame retardance and moisture-proof effects of the cable through the matching effect of the air holes, the heat conduction silicone layer and the sponge silicone tube blocking layer; through the matching effect of the supporting spring, the glass fiber cloth flame-retardant layer and the expanded graphite layer, the compression-resistant and shock-resistant cable is good in compression-resistant and shock-resistant effect and high in bending-resistant performance, so that the cable is good in heat-insulating, wear-resistant and tensile-resistant effects, and the fireproof protection efficiency of the cable is greatly enhanced; through stainless steel embossing armor sheath layer, flame retardant fiber base cloth layer and polypropylene guipure around the covering, strengthened the tensile strength of cable, the cable is solid to be shaped effectually, flame retardant protection.

Description

Flexible fireproof cable of armor sheath

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to flexible fireproof cable of armor sheath.

Background

Because the concealment of the electric wire and the cable is difficult to find in the early stage of fire, the concealment of the cable is wide, the area on fire is large, the fire is difficult to extinguish, and the cable can generate toxic gas when causing a fire, is large in harm and is not beneficial to rescue. Present fireproof cable is through adding the flame retardant coating in the cable, the flame retardant coating generally is the magnesium oxide material, it is comparatively general to use, this kind of fireproof cable is better at short-term result of use, the time of having become invalid easily for a long time the flame retardant coating, and this kind of fireproof cable hardness is big, engineering application has certain limitation, and present fireproof cable seal nature is higher, be unfavorable for the cable heat dissipation, if directly set up the louvre at the cable skin, very easily get into ash blanket and steam, can not be to the heat dissipation, fire-retardant and dampproofing effect are taken into account, stay to improve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible fireproof cable of armor sheath to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flexible fireproof cable of armor sheath, includes cable core and silicon rubber oversheath layer, the fixed cladding of cable core has the polypropylene guipure around the covering, the polypropylene guipure has silicon rubber inner sheath layer around the fixed cladding on the covering, fixedly connected with supporting spring between silicon rubber inner sheath layer and the silicon rubber oversheath layer, fixed cladding stainless steel embossing armor sheath layer on the inner wall of silicon rubber oversheath layer, the fixed cladding has the fire-retardant layer of glass fiber cloth on the inner wall of stainless steel embossing armor sheath layer, be equipped with the bleeder vent on the silicon rubber oversheath layer.

Preferably, the air holes are uniformly distributed on the silicon rubber outer sheath layer in an annular array, and the two ends of the air holes are fixedly connected with sponge silicone tube blocking layers.

The vent holes are arranged, so that the whole heat dissipation area of the cable and the fluidity of the cable and air are increased, the uniform heat dissipation of the cable is facilitated, and meanwhile, the cable is easier to deform, so that the flexibility of the cable is better; and sponge silicone tube dog layer gas permeability is good, high temperature resistant, wear-resisting ageing-resistant, and chemical stability is good, has effectively avoided the bleeder vent easily to get into the ash bed and get into steam, leads to the easy phenomenon flammable of electrocution of cable for heat dissipation and the protective effect to the cable are compromise.

Preferably, a perlite fireproof coating layer is coated on the sponge silicone tube block layer and the silicone rubber outer sheath layer.

This setting has effectively strengthened the fire-retardant fire behavior of cable.

Preferably, the hole wall of the air hole is fixedly connected with a heat-conducting silicone grease layer.

This sets up heat conduction silicone grease layer heat conduction efficiency height, has further strengthened the radiating efficiency of cable, is convenient for prolong its life.

Preferably, the supporting springs are four and distributed between the silicon rubber inner sheath layer and the silicon rubber outer sheath layer in an annular array, and the expanded graphite layer is filled among the silicon rubber inner sheath layer, the supporting springs and the glass fiber cloth flame-retardant layer.

This setting is convenient for carry out elastic support to the cable core, and the resistance to compression antidetonation is effectual, and anti bending property is high, is convenient for strengthen the structural strength and the toughness of cable, improves availability factor and life-span to through the combined action on the fine cloth flame retardant coating of glass and expanded graphite layer, thermal-insulated, adiabatic effectual, thereby further strengthened the fire prevention flame retardant property of cable.

Preferably, the inner part of the silicone rubber inner sheath layer is provided with an installation cavity, and the installation cavity is filled with a flame-retardant fiber base cloth layer.

This arrangement facilitates improved fire retardant performance of the cable.

Compared with the prior art, the utility model discloses a technological effect and advantage: according to the flexible fireproof cable with the armored sheath, the heat dissipation area of the whole cable is increased through the cooperation effect of the air holes, the heat conduction silicone grease layer and the sponge silicone tube blocking layer, so that the cable is easier to deform, the flexibility of the cable is better, the phenomenon that the cable is easy to get an electric shock and easy to burn due to the fact that the air holes easily enter the ash layer and water vapor is effectively avoided, and the heat dissipation, flame retardance and moisture resistance effects of the cable are considered; meanwhile, through the matching effect of the supporting spring, the glass fiber cloth flame-retardant layer and the expanded graphite layer, the cable core is conveniently and elastically supported, the compression-resistant and shock-resistant effects are good, the bending-resistant performance is high, the structural strength and toughness of the cable are conveniently enhanced, the service efficiency and the service life are improved, the heat-insulating, heat-insulating and wear-resistant tensile effects of the cable are good, and the fireproof protection efficiency of the cable is greatly enhanced; and through stainless steel embossing armor sheath layer, flame retardant fiber base cloth layer and polypropylene guipure around the covering, not only strengthened the tensile strength of cable, still to cable solid shape effect, fire-retardant protection.

Drawings

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

fig. 2 is a schematic view of the internal structure of the silicone rubber outer sheath layer of the present invention;

fig. 3 is a schematic diagram of the internal structure of the silicone rubber inner sheath layer of the present invention.

In the figure: 1. a silicone rubber outer jacket layer; 101. air holes are formed; 102. a thermally conductive silicone layer; 103. a sponge silicone tube block layer; 2. a stainless steel embossing armor sheath layer; 3. a fiberglass cloth flame retardant layer; 4. an expanded graphite layer; 5. a support spring; 6. a silicone rubber inner jacket layer; 601. a flame-retardant fiber base fabric layer; 602. a mounting cavity; 7. a polypropylene mesh belt wrapping layer; 8. and a cable core.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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.

As shown in fig. 1-3, a flexible fireproof cable of armor sheath, includes cable core 8 and silicon rubber oversheath layer 1, the fixed cladding of cable core 8 has the polypropylene guipure around covering 7, the polypropylene guipure has silicon rubber inner sheath layer 6 around the fixed cladding on covering 7, fixedly connected with supporting spring 5 between silicon rubber inner sheath layer 6 and the silicon rubber oversheath layer 1, fixed cladding stainless steel embossing armor sheath layer 2 on the inner wall of silicon rubber oversheath layer 1, the fixed cladding has the fire-retardant layer of glass fiber cloth 3 on the inner wall of stainless steel embossing armor sheath layer 2, be equipped with bleeder vent 101 on the silicon rubber oversheath layer 1.

The air holes 101 are uniformly distributed on the silicon rubber outer sheath layer 1 in an annular array, and sponge silicone tube blocking layers 103 are fixedly connected to two ends of each air hole 101; the vent holes 101 increase the whole heat dissipation area of the cable and the fluidity of the cable with air, are beneficial to uniform heat dissipation of the cable, and simultaneously enable the deformation of the cable to be easier, so that the flexibility of the cable is better; and sponge silicone tube stopper layer 103 gas permeability is good, high temperature resistant, wear-resisting ageing-resistant, and chemical stability is good, has effectively avoided bleeder vent 101 easily to get into the ash bed and get into steam, leads to the easy phenomenon flammable of electrocution of cable for heat dissipation and the protective effect to the cable are compromise.

A perlite fireproof coating layer is coated on the sponge silica gel tube block layer 103 and the silicon rubber outer sheath layer 1; the flame-retardant and fireproof performance of the cable is effectively enhanced.

The hole wall of the air hole 101 is fixedly connected with a heat-conducting silicone grease layer 102; the heat-conducting silicone grease layer 102 has high heat-conducting efficiency, further enhances the heat-radiating efficiency of the cable, and is convenient for prolonging the service life of the cable.

The four supporting springs 5 are uniformly distributed between the silicon rubber inner sheath layer 6 and the silicon rubber outer sheath layer 1 in an annular array, and the expanded graphite layer 4 is filled among the silicon rubber inner sheath layer 6, the supporting springs 5 and the glass fiber cloth flame-retardant layer 3; be convenient for carry out elastic support to the cable core, the resistance to compression antidetonation is effectual, and anti buckling performance is high, is convenient for strengthen the structural strength and the toughness of cable, improves availability factor and life-span to through the combined action of fine cloth fire-retardant layer 3 of glass and expanded graphite layer 4, thermal-insulated, adiabatic effectual, thereby further strengthened the fire prevention fire behaviour of cable.

An installation cavity 602 is arranged inside the silicone rubber inner sheath layer 6, and a flame-retardant fiber base cloth layer 601 is filled on the installation cavity 602; the fireproof and flame-retardant performance of the cable is improved conveniently.

Specifically, when the cable is used, the heat dissipation area of the whole cable is increased through the matching effect of the air holes 101, the heat conduction silicone grease layer 102 and the sponge silicone tube block layer 103, so that the cable is easier to deform, the flexibility of the cable is better, the phenomenon that the cable is easy to get an electric shock and is easy to burn due to the fact that the air holes 101 are easy to enter an ash layer and water vapor is effectively avoided, and the heat dissipation, flame retardance and moisture resistance effects of the cable are considered; meanwhile, through the matching action of the supporting spring 5, the glass fiber cloth flame-retardant layer 3 and the expanded graphite layer 4, the cable core 8 is conveniently and elastically supported, the compression-resistant and shock-resistant effects are good, the bending-resistant performance is high, the structural strength and toughness of the cable are conveniently enhanced, the service efficiency and the service life are improved, the heat-insulating, heat-insulating and wear-resistant tensile effects of the cable are good, and the fireproof protection efficiency of the cable is greatly enhanced; the stainless steel embossed armor sheath layer 2, the flame-retardant fiber base cloth layer 601 and the polypropylene mesh belt lapping layer 7 not only enhance the tensile strength of the cable, but also have the function of cable shape fixation and flame-retardant protection; it should be noted that: the expanded graphite 4 (EG for short) is a loose and porous vermicular substance obtained by intercalation, washing, drying and high-temperature expansion of natural graphite flakes, and the EG also has the characteristics of softness, compression resilience, adsorptivity, ecological environment harmony, biocompatibility, radiation resistance and the like which are not possessed by natural graphite, so that the expanded graphite 4 has certain compression resilience and can enable the supporting spring 5 to realize the technical effect of elastic support.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a flexible fireproof cable of armor sheath, includes cable core (8) and silicon rubber oversheath layer (1), its characterized in that: the fixed cladding of cable core (8) has the polypropylene guipure around covering (7), the polypropylene guipure has silicon rubber inner sheath layer (6) around fixed cladding on covering (7), fixedly connected with supporting spring (5) between silicon rubber inner sheath layer (6) and silicon rubber oversheath layer (1), fixed cladding stainless steel embossing armor restrictive coating (2) on the inner wall of silicon rubber oversheath layer (1), fixed cladding has glass fine cloth flame retardant coating (3) on the inner wall of stainless steel embossing armor restrictive coating (2), be equipped with bleeder vent (101) on silicon rubber oversheath layer (1).

2. A flexible fire-resistant cable sheathed in accordance with claim 1, characterized in that: the air holes (101) are uniformly distributed on the silicon rubber outer sheath layer (1) in an annular array, and sponge silicone tube blocking layers (103) are fixedly connected to the two ends of the air holes (101).

3. A flexible fire-resistant cable sheathed in accordance with claim 2, wherein: the perlite fireproof coating is coated on the sponge silica gel tube block layer (103) and the silicon rubber outer sheath layer (1).

4. A flexible fire-resistant cable sheathed in accordance with claim 1, characterized in that: the hole wall of the air hole (101) is fixedly connected with a heat-conducting silicone grease layer (102).

5. A flexible fire-resistant cable sheathed in accordance with claim 1, characterized in that: supporting spring (5) are equipped with four and are the even distribution of annular array between silicon rubber inner sheath layer (6) and silicon rubber outer sheath layer (1), it has expanded graphite layer (4) to fill between silicon rubber inner sheath layer (6), supporting spring and the fine cloth fire-retardant layer of glass (3).

6. A flexible fire-resistant cable sheathed in accordance with claim 1, characterized in that: the inner part of the silicon rubber inner sheath layer (6) is provided with an installation cavity (602), and a flame-retardant fiber base cloth layer (601) is filled in the installation cavity (602).