Quick insertion assembly

A quick inserting assembly is used for quickly connecting a pipe joint and a connecting pipe opening of a pipe, the pipe joint comprises an inserting pipe, one end of the longitudinal inner side of the inserting pipe is inserted into the connecting pipe opening in a matched mode, one end of the longitudinal outer side of the inserting pipe protrudes outwards to form a pressing ring, and the outer diameter of the pressing ring is larger than the inner diameter of the connecting pipe. One part of the inner wall of the pipe is shrunk outwards in the radial direction to form a first stopping surface which is over against the inner inserting pipe in the longitudinal direction; the at least one second sealing ring is sleeved in the pipe so as to longitudinally seal the pipe and the inserting pipe, and is positioned between the first stopping surface and the inner inserting pipe; the locking and blocking mechanism can prevent the pressing ring from being disengaged outwards in the longitudinal direction in the locki