Pipeline connecting joint

The utility model discloses a pipeline connecting joint which comprises a first connecting assembly and a second connecting assembly, the first connecting assembly comprises a first connecting cylinder, the outer end of the first connecting cylinder extends out of a first connecting ring, an elastic ring is arranged on the outer circle of the first connecting ring, and a plurality of inclined elastic pieces are evenly arranged in the circumferential direction of the elastic ring; the second connecting assembly comprises a second connecting cylinder, external threads are arranged at the outer end of the second connecting cylinder, a second connecting ring extends out of the inner end of the second connecting cylinder, the second connecting ring is inserted into and connected with the first connecting cylinder, and the pipeline connecting joint widens the distance range between two gas pipelines needing to be connected and is suitable for more application scenes. 本实用新型公开了一种管道连接接头，包括第一连接组件和第二连接组件，第一连接组件包括第一连接筒，第