waterproof device

Abstract

The invention discloses a waterproof device comprising a bearing component, an expansion component, a telescopic structure, a switching component, and a clamping component. The switching component compresses the communication space of the bearing component and the expansion component to make the expansion component expand into a bulge on the outer or inner surface of the bearing component, and then, the expansion component extrudes a cable / pipe inward or extrudes a wall body outward to form a sealed state and block the flow of water. While compressing the space, the switching component extrudes the clamping component and makes the clamping component move outward to clamp the inner walls of the holes in the wall body so as to fix the whole device. The telescopic structure rotates through the bearing component to stretch out or draw back so as to change the length of the device, so the device adapts to wall bodies of a variety of thicknesses.

Description

technical field [0001] The invention relates to the technical field of waterproof structure design, in particular to a waterproof device for substation cables or pipelines. Background technique [0002] At present, many underground substations have been built in big cities such as Shanghai and Beijing. Cables are basically used for the incoming and outgoing lines of underground substations. The cables of the underground substation are generally connected to the external cable tunnel or cable shaft by the cable layer through the cable shaft, or directly connected to the external cable tunnel from the cable layer. Reserve the waterproof casing through the wall. [0003] In view of the particularity of the construction of the exterior wall of the underground substation, that is, the exterior wall of the general underground substation is composed of an underground diaphragm wall and a reinforced concrete lining. . During the construction of the underground diaphragm wall, fi...

AI Technical Summary

Problems solved by technology

During the construction of the underground diaphragm wall, first, the pre-embedded waterproof casing through the wall cannot be larger than the width of the underground diaphragm wall, and the waterproof casing of the lining cannot be pre-embedded at the same time; second, the pre-embedded waterproof casing not only makes concrete pouring difficult, but also easy Pouring and tamping is not compact, and the position of the embedded pipe is also prone to deviation

[0004] Such as invention CN201320829810 a kind of underground substation cable waterproof casing, its construction is relatively complicated, especially if the water stop ring and water stop strip are not installed in place, it will also cause adverse consequences, once the device is installed, if due to some reasons, need To replace the cable, it needs to be completely destroyed, which is very inconvenient and not conducive to environmental protection

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