Saddle connecting piece for pipeline

The saddle connecting piece for the pipeline comprises an external thread tubular joint which is formed by splicing a first connecting piece and a second connecting piece, a connecting face is arranged below the first connecting piece and the second connecting piece, and the connecting face extends into a pipeline opening and is attached to the inner wall of the pipeline; the compaction gasket is sleeved on the outer side of the external thread tubular joint; the upper shell pressing plate is arranged on the outer side of the compaction gasket in a sleeving mode and attached to the outer wall of the pipeline. The internal thread joint is arranged in the external thread tubular joint; and the nut is compacted to lock and fix the external thread tubular joint at the opening of the pipeline. The external thread tubular joint is divided into the two connecting pieces capable of being spliced, the connecting faces on the first connecting piece and the second connecting piece can extend into the pipeline and form c