Bitumen hessian seal between oversize steel pipe and rigid water-proof sleeve

Abstract

The utility model discloses a kind of super-large diameter steel pipe and rigid waterproof sleeve pipe between pitch oil hemp plugging auxiliary compactor, belong to buried pipeline well and pipe jacking hole entrance sleeve pipe plugging waterproof construction technical field, the utility model is provided with first arc plate and second arc plate for being attached with steel pipe outer wall, connecting link is connected between the first arc plate and the second arc plate, for making the first arc plate and the second arc plate keep interval arrangement, compaction surface is formed on the side of the second arc plate away from the first arc plate, for being contacted with pitch oil hemp, the utility model is simple to operate, installation speed is fast, compaction contact area is big, effectively improve sleeve pipe inner pitch oil hemp compaction construction efficiency and plugging quality.

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