CN211879053U

CN211879053U - Anti-aging railway cable with flame-retardant function

Info

Publication number: CN211879053U
Application number: CN202020393654.6U
Authority: CN
Inventors: 吴学明; 吴迪
Original assignee: Jiangsu Ruiyang Cable Co ltd
Current assignee: Jiangsu Ruiyang Cable Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-11-06
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses an anti-aging railway cable with flame retardant function in the technical field of cables, which comprises a wrapping layer, three groups of inner shielding layers are uniformly arranged in the inner cavity of the wrapping layer, an insulating layer is arranged in the inner cavity of each inner shielding layer, the inner cavity of the insulating layer is provided with a conductor, the outer wall of the wrapping layer is sleeved with an outer shielding layer, the outer wall of the outer shielding layer is sleeved with a water-resisting layer, the outer wall of the waterproof layer is sleeved with the flame-retardant layer, the outer wall of the flame-retardant layer is sleeved with the outer sheath, the cable is protected by the flame-retardant filling layer, the flame-retardant layer and the outer sheath in the device, the flame-retardant performance of the cable is improved, the probability of damage of the cable is reduced, the service life of the cable is ensured, and the oversheath increases the ageing resistance of cable, increases the life of cable, and the opening plays the effect of a buffering simultaneously, further increases the compressive capacity of cable, guarantees that the cable normally works.

Description

Anti-aging railway cable with flame-retardant function

Technical Field

The utility model relates to the technical field of cables, specifically be a cable for ageing resistance railway with fire-retardant function.

Background

The cable is the indispensable cable in the operation of railway, and when current cable was installed and is used in the railway, the cable can receive external environment's influence, however if the fire-retardant and compressive capacity of cable is relatively poor, then can lead to the cable to take place to damage, influences the cable and normally works, for this reason, we provide a cable for ageing resistance railway with fire-retardant function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable for ageing resistance railway with fire-retardant function 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 cable for ageing resistance railway with fire-retardant function, includes around the covering, evenly be provided with three internal shield layers of group around the covering inner chamber, the internal shield layer inner chamber is provided with the insulating layer, the insulating layer inner chamber is provided with the conductor, the external shield layer has been cup jointed around the covering outer wall, the water barrier has been cup jointed to the external shield layer outer wall, fire-retardant layer has been cup jointed to the water barrier outer wall, the oversheath has been cup jointed to fire-retardant layer outer wall.

Preferably, the inner cavity of the outer sheath is uniformly provided with eight groups of openings, and the eight groups of openings are arranged in an annular array.

Preferably, the inner cavity of the outer sheath is uniformly provided with holes, and the inner cavity of each hole is provided with a reinforcing rib.

Preferably, a filling layer is arranged in the inner cavity of the wrapping layer and is a flame-retardant filling layer.

Preferably, the vertical section thickness of the outer sheath is three centimeters, and the outer sheath is an anti-aging outer sheath.

Preferably, the cross-sectional thickness around the covering is five millimeters, and around the covering for low smoke and zero halogen fire-resistant fire-retardant band around the covering.

Compared with the prior art, the beneficial effects of the utility model are that: the cable is protected through fire-retardant filling layer, fire-retardant layer and oversheath in the device, increases the fire behaviour of cable, reduces the probability that the cable takes place to damage, guarantees the life of cable to the oversheath increases the ageing resistance ability of cable, increases the life of cable, and the opening plays the effect of a buffering simultaneously, further increases the compressive capacity of cable, guarantees that the cable normally works.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. wrapping a covering; 2. an inner shield layer; 3. an insulating layer; 4. a conductor; 5. a filling layer; 6. an outer shield layer; 7. a water barrier layer; 8. a flame retardant layer; 9. an outer sheath; 10. an opening; 11. and (5) reinforcing ribs.

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.

The utility model provides a technical scheme: referring to fig. 1, the cable with a flame retardant function for an anti-aging railway comprises a wrapping layer 1;

referring to fig. 1, three groups of inner shielding layers 2 are uniformly arranged in an inner cavity of a wrapping layer 1, the inner shielding layers 2 are woven by copper wires and used for shielding interference of the outside to cables and shielding interference of the cables to the outside to ensure normal operation of the cables and also ensure that the cables cannot interfere with each other, an insulating layer 3 is arranged in the inner cavity of each inner shielding layer 2, the insulating layer 3 is a vulcanized ceramic rubber sheath and wraps a conductor 4 to ensure normal use of the conductor 4, and a conductor 4 is arranged in the inner cavity of each insulating layer 3;

referring to fig. 1, an outer shielding layer 6 is sleeved on the outer wall of a wrapping layer 1, the outer shielding layer 6 and an inner shielding layer 2 are made of the same material and are formed by weaving copper wires, so that an interference shielding effect is achieved, the interference shielding capability of a cable is improved, the normal operation of the cable is ensured, the strength of the whole cable is improved by the outer shielding layer 6 formed by weaving the copper wires, the anti-pulling capability of the cable is ensured, the probability of damage of the cable is reduced, and the service life of the cable is ensured;

referring to fig. 1, a water-resisting layer 7 is sleeved on the outer wall of an outer shielding layer 6, the water-resisting layer 7 is made of a high water-absorption resin material and has a waterproof effect to ensure the waterproof effect of a cable, a flame-retardant layer 8 is sleeved on the outer wall of the water-resisting layer 7, the flame-retardant layer 8 is a glass fiber flame-retardant layer to ensure the flame-retardant effect of the cable and the normal operation of the cable, an outer sheath 9 is sleeved on the outer wall of the flame-retardant layer 8, the cable layers are fixedly connected, and the connection mode between the cable layers is the prior art;

referring to fig. 1, openings 10 are uniformly formed in an inner cavity of an outer sheath 9, the openings 10 are arranged along the length direction of a cable, and the outer sheath 9 has a buffering effect by compressing and expanding the openings 10, so that the compression resistance and bending resistance of the cable are improved, the cable is integrally protected, the service life of the cable is prolonged, the number of the openings 10 is eight, and the eight groups of openings 10 are arranged in an annular array;

referring to fig. 1, holes are uniformly formed in an inner cavity of an outer sheath 9, reinforcing ribs 11 are arranged in the inner cavity of the holes, the reinforcing ribs 11 are woven by steel wires, strength of the cable is improved, anti-pulling capacity of the cable is improved, service life of the cable is guaranteed, and the reinforcing ribs 11 are arranged along the length direction of the cable and are the same as the length of the cable;

referring to fig. 1, a filling layer 5 is arranged in an inner cavity of a wrapping layer 1, the filling layer 5 is a flame-retardant filling layer, and the flame-retardant filling layer is made of high-flame-retardant polyethylene, so that the flame retardant property of the cable is improved, the cable is ensured to be normally used in subway work, and the probability of damage to the cable is reduced;

referring to fig. 1, the vertical section of the outer sheath 9 is three centimeters in thickness, the outer sheath 9 is an anti-aging outer sheath, the anti-aging outer sheath is composed of an anti-aging rubber layer and a polytetrafluoroethylene layer, the polytetrafluoroethylene layer has good corrosion resistance, the anti-aging rubber layer has good wear resistance and aging resistance, the anti-aging capability of the cable is improved, the service life of the cable is prolonged, and the normal use of the cable is ensured;

referring to fig. 1, the cross-sectional thickness of the wrapping layer 1 is five millimeters, and the wrapping layer 1 is a low-smoke halogen-free high-temperature-resistant flame-retardant wrapping tape wrapping layer, so that the cable has the double oil-resistant effects of mineral oil resistance and fuel oil resistance, the use requirement of the cable for a railway locomotive is completely met, the normal use of the cable is ensured, and the normal work of the cable in a railway environment is ensured.

The working principle is as follows: filling layer 5 and the cooperation of fire-retardant layer 8, increase the fire behaviour of cable, guarantee that the difficult emergence of cable is damaged, and inner shield layer 2 and the 6 combinations of outer shielding layer increase the anti-jamming ability of cable, guarantee that the cable normally works in the railway, and strengthening rib 11 guarantees the holistic intensity of cable, make the cable tensile drag, guarantee the life of cable, through the ageing resistance oversheath, improved the ageing resistance of cable, increase the life of 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 for ageing resistance railway with fire-retardant function, includes around covering (1), its characterized in that: evenly be provided with three internal shield layers (2) of group around covering (1) inner chamber, internal shield layer (2) inner chamber is provided with insulating layer (3), insulating layer (3) inner chamber is provided with conductor (4), outer shielding layer (6) have been cup jointed around covering (1) outer wall, outer shielding layer (6) outer wall has been cup jointed water barrier (7), fire-retardant layer (8) have been cup jointed to water barrier (7) outer wall, oversheath (9) have been cup jointed to fire-retardant layer (8) outer wall.

2. The cable with flame retardant function for anti-aging railways according to claim 1, characterized in that: openings (10) are uniformly formed in the inner cavity of the outer sheath (9), eight groups of openings (10) are formed in total, and the eight groups of openings (10) are arranged in an annular array.

3. The cable with flame retardant function for anti-aging railways according to claim 1, characterized in that: the inner cavity of the outer sheath (9) is uniformly provided with holes, and reinforcing ribs (11) are arranged in the inner cavity of the holes.

4. The cable with flame retardant function for anti-aging railways according to claim 1, characterized in that: the inner cavity of the wrapping layer (1) is provided with a filling layer (5), and the filling layer (5) is a flame-retardant filling layer.

5. The cable with flame retardant function for anti-aging railways according to claim 1, characterized in that: the vertical section thickness of the outer sheath (9) is three centimeters, and the outer sheath (9) is an anti-aging outer sheath.

6. The cable with flame retardant function for anti-aging railways according to claim 1, characterized in that: the cross-sectional thickness around covering (1) is five millimeters, and just winds covering (1) and is low smoke and zero halogen fire-resistant fire-retardant band around covering.