Drilling liner well cementing liner rubber plug assembly

The invention relates to the technical field of rubber plug assemblies, particularly to a drilling liner well cementing liner rubber plug assembly. The drilling liner well cementing liner rubber plugassembly comprises a short joint, a sliding sleeve, a pawl sleeve and a rubber plug spindle; the inside of the middle of the short joint is integrally and fixedly provided with a ring-shaped table, and the inside of the upper portion of the ring-shaped table is provided with at least one arc ring groove; the upper end of the pawl sleeve is fixedly provided with a pawl, the outside of the upper endof the pawl is integrally and fixedly provided with a flange which is clamped into the arc ring groove; the lower portion of the short joint is mounted onto the pawl sleeve in a sleeving mode; the lower portion of the sliding sleeve is fixedly connected with the middle of the pawl sleeve through at least one shear pin. The drilling liner well cementing liner rubber plug assembly is reasonable and compact in structure and