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Cable duct box device for rail transportation

A cable trough box and rail transit technology, applied in the field of rail transit, can solve the problems of environmental erosion and freeze-thaw damage of cement products, inconvenient maintenance and replacement of cement cable troughs, and limited use of regions, etc. Anisotropy, the effect of increasing the oxygen index

Active Publication Date: 2014-11-19
NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The durability is poor. Due to the outdoor environment, cement products are easily damaged by environmental erosion and freeze-thaw, which limits the use area;
[0004] 2. The cement cable trough has microscopic holes, which are easy to absorb water in a humid environment, and have a great impact on the internal cables and cables. Once short-circuited, there is a risk of accidents;
[0005] 3. The distance between each section of the cement cable duct is only 3-5 meters, but each section weighs more than 200kg. The weight is too heavy, and the installation is very inconvenient. It needs to be installed and transported by lifting machinery, and there are requirements for the load-bearing design of the elevated line;
[0006] 4. It is inconvenient to maintain and replace the cement cable trough in the later stage, and the production cycle is about 1 month

Method used

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  • Cable duct box device for rail transportation
  • Cable duct box device for rail transportation
  • Cable duct box device for rail transportation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The cable trough box device for rail transit in this embodiment includes a plurality of cable trough box units made of composite materials connected end to end in sequence, a sealing component and a load-bearing component arranged at the joints of the cable trough box units. The sealing assembly includes a sealing bead 2 and a spacer 1, wherein the spacer 1 is arranged at the bottom of the junction of the unit body of the cable groove box, and the sealing bead 2 is sealed and pressed on the upper surface and the side of the junction of the unit body of the cable groove box, There is a detachable connection between the sealing bead 2 and the spacer 1 . The load-bearing assembly includes a fixed bead 3 and a pad 1, the pad 1 is arranged at the bottom of the middle part of the cable groove box unit body, the fixed bead 3 is pressed on the upper surface and the side of the cable groove box unit body, the fixed bead 3 and The pads 1 are detachably connected. The fixed bead ...

Embodiment 2

[0044] The new composite material cable duct for rail transit in this embodiment includes a cable duct box unit body, a spacer 1 , a sealing bead 2 and a fixing bead 3 . The specific structure is the same as in Embodiment 1, and will not be described in detail here.

[0045] The unit body of the cable trough box is prepared by the pultrusion process of each component with the following weight:

[0046]

[0047] The preparation method is as follows: add the release agent to the unsaturated polyester resin, stir with a high-speed disperser at a speed of 1000 rpm for 1 minute, and add the other components to the above resin in turn. During the addition process, the high-speed dispersant should be Continue to disperse, and keep the stirring speed above 1000 revolutions per minute. After all the materials are added, continue to disperse for 5 minutes to obtain an unsaturated polyester resin paste; use glass fiber ply roving to fully soak in the above mixture. Some pultrusion mo...

Embodiment 3

[0051] The new composite material cable duct for rail transit in this embodiment includes a cable duct box unit body, a spacer 1 , a sealing bead 2 and a fixing bead 3 . Concrete structure is with embodiment 1.

[0052] The unit body of the cable trough box is prepared by the pultrusion process of each component with the following weight:

[0053]

[0054] The preparation method is as follows: add the release agent to the unsaturated polyester resin, stir with a high-speed disperser at a speed of 1000 rpm for 1 minute, and add the other components to the above resin in turn. During the addition process, the high-speed dispersant should be Continue to disperse, and keep the stirring speed above 1000 revolutions per minute. After all the materials are added, continue to disperse for 5 minutes to obtain an unsaturated polyester resin paste; use glass fiber ply roving to fully soak in the above mixture. Some pultrusion molding techniques make glass fiber plied roving, chopped ...

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Abstract

The invention provides a cable duct box device for rail transportation. The cable duct box device comprises a plurality of cable duct box units sequentially connected end to end and made of composite material, and sealing assemblies arranged at the joints of the cable duct box units. Each sealing assembly includes a sealing pressing strip (2) and a cushion block (1). Each cushion block (1) is arranged at the bottom of the corresponding joint of the cable duct box units, each sealing pressing strip (2) seals and presses the upper surface and the side faces of the corresponding joint of the cable duct box units, and each sealing pressing strip (2) and the corresponding cushion block (1) are detachably connected. The cable duct box device for rail transportation has the advantages of high flame retardancy, low smoke toxicity, high strength, low density, good aging-resistant performance, convenient installation, low cost, short production cycle, and the like.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a rail transit cable trough box device for urban rail transit. Background technique [0002] With the progress of society, the development of science and technology, and the acceleration of urbanization in all parts of the country, the construction of urban rail transit has also entered a stage of rapid development. In the construction of rail transit, a large number of cables and signal lines need to be laid on the whole line, so the safety protection of cables has been paid more and more attention by people. The cable protection grooves currently used in rail transit are made of cement, which has the following disadvantages in actual use: [0003] 1. The durability is poor. Due to the outdoor environment, cement products are easily damaged by environmental erosion and freeze-thaw, which limits the use area; [0004] 2. The cement cable trough has microscopic holes, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G3/04
Inventor 钟斌周良华俞碧波许忠张宵华张文武赵勤王军平杨树松
Owner NINGBO HUAYUAN FRP ELECTRICAL APPLIANCE MFR
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