Radial expanding waterproof pipe plug

Abstract

The invention designs a radial expanding waterproof pipe plug, including a bottom plate (1), a fixed slideway (2), a sliding block (3), a rubber annular cylindrical sleeve (4), a movable slideway (5),a top plate (6), a rotating nut (7), a bolt (8), and a spring (9). Each component is connected together in a mechanical manner. After the pipe plug enters a pipe, through adjusting the rotating nut,the pipe plug is expanded in a radial manner, and radial pressure and contact area of the pipe plug and the inner wall of the pipe are improved, so as to improve friction forces between the pipe plugand the inner wall of the pipe, and prevent falling-off and achieve waterproof effect.

Description

technical field [0001] The invention relates to a pipe plug, in particular to a radially expanding waterproof pipe plug for electric cable ducts. Background technique [0002] The key to solve the problem of pipe plugs for power cables is waterproofing. The pipe plugs usually used are in the shape of a truncated cone. The linear contact of the perimeter of the largest outer diameter is easy to fall off during the construction process, causing serious water seepage in the pipeline. For this reason, a radial expansion type waterproof pipe plug is designed, which expands after entering the pipeline and contacts the inner wall of the pipeline, increasing the friction area and radial pressure to prevent falling off, thus achieving the effect of waterproofing. Contents of the invention [0003] The purpose of the present invention is to provide a radial expansion type waterproof pipe plug, after entering the pipeline, it can be radially expanded by adjusting the nut, which impr...

AI Technical Summary

Problems solved by technology

[0002] The key to solve the problem of pipe plugs for power cables is waterproofing. The pipe plugs usually used are in the shape of a truncated cone. T

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