Buried enhanced and modified polypropylene ripple cable sleeve

Abstract

The invention provides a buried enhanced and modified polypropylene ripple cable sleeve. The buried enhanced and modified polypropylene ripple cable sleeve comprises a single-wall ripple pipe wall extending along the length direction of the sleeve, a buckling pipe fitting, and a sealing ring. The outer wall of the single-wall ripple pipe wall is provided with a plurality of annular bulges, the cross section of each annular bulge is shaped like an isosceles trapezoid, and the annular bulges adopt arc transition. The inner wall of the sealing ring sleeves one end of the outer wall of the single-wall ripple pipe wall. The inner wall of the buckling pipe fitting sleeves the outer wall of the sealing ring. The buckling pipe fitting comprises a first pipe fitting and a second pipe fitting. Arc side edges of the first and second pipe fittings are provided with stoppers. One end of the first pipe fitting is hinged to one end of the second pipe fitting, and the other end of the first pipe fitting is in buckled connection with the other end of the second pipe fitting. The buried enhanced and modified polypropylene ripple cable sleeve is a single-wall ripple pipe of a specific waveform, adopts the special anti-off buckling pipe fitting for connection, and is advantaged by being high in annular rigidity and low-temperature punching intensity, small in inner wall friction coefficient, light in weight, excellent in performances of environmental protection, high-temperature resistance, aging resistance, wear resistance, water resistance and sealing, capable of being coiled and piled, and convenient in construction.

Description

technical field [0001] The invention relates to the technical field of electric wires and cables, in particular to a buried reinforced modified polypropylene corrugated cable sleeve. Background technique [0002] At present, the buried protection of electric power, control cables, communication lights and cables is mostly protected by casings, and MPP single-wall corrugated pipes are the most widely used in all buried pipes. MPP single-wall corrugated pipe is commonly known as HFB electric pipe and HFFB electric pipe. HFB power pipe is common type, suitable for laying under sidewalks and green belts, without concrete encapsulation. If the requirements for anti-seismic and compressive use are more stringent or instead of steel pipes crossing bridges, HFFB enhanced power pipes can be selected. The enhanced power tube has higher strength and resistance to compression and impact. However, in actual use, there are problems such as deviations in aging resistance and friction re...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of aging resistance and friction performance deviation, low low-temperature impact strength, and insufficient toughness existing in the current casing, and provides a casing with high ring stiffness, high low-temperature impact strength, small inner wall friction coefficient, light weight, and environmental protection. Performance, high temperature resistance, aging resistance, wear resistance, excellent waterproof and sealing performance, can be coiled and stacked, and convenient construction Buried reinforced modified polypropylene corrugated cable sleeve

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