A dismantling-free fireproof partition device arranged in a cable tunnel

Abstract

The invention relates to a non-dismantling type fire prevention isolation device in a cable tunnel and belongs to the cable tunnel fire prevention isolation field. According to the structure of the non-dismantling type fire prevention isolation device, an L-shaped manhole is L-shaped; the top of the L-shaped manhole is provided with a manhole cover; one end of the bottom of the L-shaped manhole is communicated with the cable tunnel; a brick protective layer is arranged at the outer side of the L-shaped manhole; a waterproof protective layer is arranged at the inner side of the L-shaped manhole; a fire prevention isolation unit is arranged in the cable tunnel; drainage ditches are arranged at two sides of the bottom of the fire prevention isolation unit; two sides of the interior of the fire prevention isolation unit are provided with cable supports; the cable supports are provided with cables; fire prevention building blocks are arranged between the cables; a fire prevention isolation door is arranged between the cable supports; the fire prevention isolation door is composed of a C-shaped fire prevention door frame and a fire prevention door plate; four corners of the C-shaped fire prevention door frame are provided with free pins; the C-shaped fire prevention door frame is fixed in the cable tunnel through the free pins; and the fire prevention door plate is provided with an escape lock. With the non-dismantling type fire prevention isolation device in the cable tunnel of the invention adopted, the fire prevention isolation unit is not required to be disassembled when the cables are maintained or replaced, and therefore, a construction period can be shortened, power outage time is decreased, and costs and labor can be saved.

Description

technical field [0001] The invention relates to the field of fireproof partitions of cable tunnels, in particular to a dismantling-free fireproof partition device arranged in cable tunnels. Background technique [0002] Usually, when a cable in the cable tunnel is damaged and repaired or replaced, it is necessary to remove the fireproof partition to repair or replace it, which will cause a long power outage, a long construction period, high cost, and laborious work. Contents of the invention [0003] In view of the above technical problems, the present invention provides a dismantling-free fireproof partition device installed in the cable tunnel, which is characterized in that: the L-shaped manhole (12) is L-shaped, and the top of the L-shaped manhole (12) is set There is a manhole cover (11), one end of the bottom of the L-shaped manhole (12) is connected with the cable tunnel (2), the outer side of the L-shaped manhole (12) is a brick-cut protective layer (13), and the L...

AI Technical Summary

Problems solved by technology

[0002] Usually, when a cable in a cable tunnel is damaged and repaired or replaced, it is necessary to remove the fireproof partition to repair or replace it, which will cause a long power outage, a long construction period, high cost, and laborious

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