Underground pipe joint compression resistance device for municipal water supply and drainage

The utility model discloses an underground pipe joint compression-resistant device for municipal water supply and drainage, and relates to the technical field of water supply and drainage. Comprising a locking structure and a connecting cylinder; connecting cylinders are installed at the two ends of the locking structure correspondingly, and a plurality of clamping structures are installed in the connecting cylinders. The clamping structure comprises two limiting rings which are symmetrically installed in the connecting cylinder, a plurality of grooves of annular parts are formed in the limiting rings, a plurality of elastic reeds are installed between the limiting rings, the elastic reeds are in an arc shape protruding towards the inner side of the connecting cylinder, rollers are rotationally installed at the two ends of each elastic reed respectively, and the rollers are embedded into the grooves. According to the device, the underground pipeline joint can be fully protected, joint damage caused by extrusi