Plastic pipeline plugging device

Abstract

The invention relates to the technical field of pipeline plugging, and particularly relates to a plastic pipeline plugging device. The plastic pipeline plugging device comprises a middle shaft column,wherein a rotating column is arranged in the middle shaft column; a pressing disc column and a fixing disc are arranged outside the middle shaft column in a sleeving mode; an extrusion fixing disc isarranged at one end of the fixing disc; a rotating disc is arranged in the extrusion fixing disc; the middle shaft column comprises a middle shaft column body; the rotating disc comprises a rotatingblocking disc and a rotating limiting disc; the rotating limiting disc comprises a rotating sliding plate, a rotating blocking fixing plate and a rotating stop block; and a rubber soft pressing ring is connected to one side of the fixing disc. The problems that when a pipeline is damaged and leaks for first-aid repair, upstream and downstream ports of the pipeline need to be sealed, operation is inconvenient, gas and liquid in the pipeline are wasted, traditional air bag sealing cannot achieve sealing and stability in the pipeline, sliding is prone to being caused by thrust of upstream liquid,an existing pipeline plugging device is arranged on a pipeline with an internal thread or an external thread through a threaded cover, but the existing pipeline plugging device cannot play a role ina pipeline without a thread are solved.

Description

technical field [0001] The invention relates to the technical field of pipeline sealing, in particular to a plastic pipeline sealing device. Background technique [0002] Pipelines are an important part of urban infrastructure construction. They are highly efficient and convenient in transporting oil, water, and gas. However, pipelines often have faults such as damage and leakage. The upstream and downstream ports of the pipe are sealed, and the air bag and the fixing device are used to seal the outside of the port, but the upstream and downstream ports of the pipe are far away, which is inconvenient to operate, and will cause a lot of waste or disorderly discharge of liquid in the pipe, while the traditional Ordinary airbag seals cannot achieve sealing and stable fixation inside the pipeline, and are prone to slide due to the thrust of the upstream liquid, which affects the sealing effect. The current pipeline sealing device is installed on the pipeline with internal or ext...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a plastic pipeline sealing device to solve the problem that the upstream and downstream ports of the pipeline need to be sealed when the pipeline is damaged and leaked in the above-mentioned background technology, but the distance between the upstream and downstream ports of the pipeline is relatively long. It is inconvenient to operate, and it will cause a large amount of waste or disorderly discharge of liquid in the pipeline. The traditional common airbag seal cannot achieve sealing and stable fixation inside the pipeline, and it is easy to slide due to the thrust of the upstream liquid, which affects the sealing effect. The existing pipeline seal The plugging device is installed on a pipe with internal or external threads through a threaded cap, but it cannot function for pipes without threads

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