All-directional self-locking fastening device for skirting cover

The invention relates to an all-directional self-locking fastening device for a skirting cover and relates to the technical field of skirtings. The all-directional self-locking fastening device comprises an inner lock and an outer cover. The outer cover is arranged outside the inner lock. The all-directional self-locking fastening device has the advantages that mounting is facilitated, construction is easier for workers, work efficiency is improved, vertical, longitudinal and transverse adjustment is still available after mounting, and the all-directional self-locking fastening device is also applicable to fastening of irregular walls.