Light-weight reinforcing cable for elevator

Abstract

The application discloses a light-weight reinforcing cable for an elevator. The cable comprises an outer sheath, wherein the outer sheath is internally provided with a trapezoidal cable hole composedof three triangular holes, cables with the same number are provided in each triangular hole, an insulation fireproof layer is provided between each cable group, the outer part of the trapezoidal cablehole is provided with a flame-retardant insulation layer, and a glass fiber filler is filled between the flame-retardant insulation layer and the trapezoidal cable hole. The invention prevents corrosion caused by excessive internal heat and ensures overall performance by adopting a structure in which three triangular holes constitute a trapezoidal cable hole and cooperatively using the insulationfireproof layer and the flame-retardant insulating layer, and effectively avoids external high temperature erosion of the sound and external pressure to compress the entire cable core conductor by closely arranging the cables, thereby greatly reducing the force received in the cable body, effectively reducing the overall volume and weight of the cable, improving the overall tensile strength of the cable, and avoiding heat exchange with each other between high temperature cables to obtain high fire resistance.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a special light reinforced cable for elevators. Background technique [0002] The elevator cable is an important supporting part of the elevator. It needs to move up and down with the elevator. During this process, the traditional elevator cable uses a steel wire cable to increase the weight, increase the outer diameter, increase the cost, and the cable bending performance is relatively poor. The elevator cable needs to be Bear its own weight, but also bear the stress caused by frequent U-shaped bending. With more and more high-rise buildings, elevators are running faster and faster. Traditional elevator cables can no longer meet the operating requirements of elevators. Problems such as core breakage and outer sheath cracking are prone to occur. The outage fault requires the replacement of the whole cable, which is quite troublesome to repair. At the same time, the existing eleva...

AI Technical Summary

Problems solved by technology

[0002] The elevator cable is an important supporting part of the elevator. It needs to move up and down with the elevator. During this process, the traditional elevator cable uses a steel wire cable to increase the weight, increase the outer diameter, increase the cost, and the cable bending performance is relatively poor. The elevator cable needs to be Bear its own weight, but also bear the stress caused by frequent U-shaped bending

With more and more high-rise buildings, elevators are running faster and faster. Traditional elevator cables can no longer meet the operating requirements of elevators. Problems such as core breakage and outer sheath cracking are prone to occur. The outage fault requires the replacement of the whole cable, which is quite troublesome to repair. At the same time, the existing elevator cable has poor shielding effect and is easily interfered by external signals. The communication in the elevator cannot be used normally. The fire resistance of the elevator cable is poor and cannot be used Safety

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