A gas pipeline wall bushing

Abstract

The utility model relates to pipeline installation technical field, concretely relates to a gas pipeline wall bushing, including wall body, still including sleeve and plugging piece, the sleeve is worn in the perforation, and the sleeve is worn in the gas pipeline, the left and right ends of sleeve all are equipped with plugging piece, left side plugging piece includes outer thread pipe and bearing ring, the left end surface of sleeve is recessed and has the thread hole, the outer thread pipe is covered in the gas pipeline outside, and right part thread joint thread hole, the inner wall of outer thread pipe is equipped with annular groove, and the left and right ends between annular groove are connected with the elastic pipe covered in the gas pipeline outside, and the annular groove in the outside of elastic pipe is gas storage cavity, the left part of outer thread pipe is equipped with fixed bearing ring, and the right side surface of bearing ring is equipped with the sealing washer that contacts the left side surface of wall body, and is equipped with the inflation element that is used to fill the inflation in gas storage cavity in bearing ring. The utility model has solved the problem that the water content is easy to enter between the gap of gas pipeline and external sleeve when the gas pipeline wall installation.

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