Pipe fitting buckling and pressing device

The utility model provides a pipe fitting buckling and pressing device which comprises an outer plate body assembly and a buckling and pressing sliding part assembly, four fixing blocks are arranged on the inner side of the outer plate body assembly, a guide sliding groove is formed between every two adjacent fixing blocks, the buckling and pressing sliding part assembly comprises four buckling and pressing sliding parts, and the buckling and pressing sliding parts are connected into the guide sliding grooves in a sliding mode respectively. The four buckling and pressing sliding parts are arranged in a rotational symmetry manner; a driving part corresponding to the buckling sliding part is arranged on the outer side of the outer plate body assembly; one end of the buckling sliding part is connected with the driving part, buckling blocks are arranged at the other end of the buckling sliding part, and a buckling groove is defined by the buckling blocks; the driving part drives the buckling sliding part to move