Pipeline plugging device

Abstract

The invention relates to a pipeline plugging device mainly used for water plugging of municipal drainage pipeline reconstruction, first-aid repair, dredging and the like. The pipeline plugging device comprises a control mechanism and an expansive pipeline plugging head; the expansive pipeline plugging head comprises an elastic plugging cap and an expansion ring mounted in the elastic plugging cap; and the expansion ring is driven by an expansion and contraction mechanism to realize radial expansion and contraction deformation. According to the pipeline plugging device, the control mechanism drives the expansion ring to realize expansion and contraction deformation, so that the elastic plugging cap is plugged in a pipeline close to a pipe orifice. The pipeline plugging device is relatively high in universality, capable of adapting to plugging operation for pipelines with different pipe diameters, convenient to use, large in plugging force, reliable in plugging and relatively high in market and use value.

Description

technical field [0001] The invention relates to a pipeline blocking device, which is mainly used for water blocking in the transformation, emergency repair and dredging of municipal drainage pipelines. Background technique [0002] In municipal engineering, especially in the construction of sewage pipelines, it is often necessary to partially block the sewage pipelines and pump out the water in the sewage pipelines so that construction workers can enter the sewage pipelines to work. The traditional sewage pipe plugging method is to use a plugging air bag to block water. [0003] The working principle of the plugging airbag for water blocking is to use the pipe sealing airbag made of high-quality rubber to inflate it by inflation. The frictional force generated by the pipeline blocking air bag wall and the pipeline blocks the water leakage, so as to achieve the purpose of no water seepage in the target pipe section. But the airbag must be blocked by construction workers. Wh...

AI Technical Summary

Problems solved by technology

However, since the plugging head of the free inspection well drainage pipe plugging device is a sealing plate, its shape is fixed, and its versatility is poor, so it cannot adapt to the plugging operation of different pipe diameters.

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