Safety hinge capable of elastically limiting

The utility model discloses an elastic limiting safety hinge, which belongs to the technical field of hinges and comprises a supporting plate, a clamping groove is formed in the upper surface of the supporting plate, one end of a through hole is formed in the inner wall of the bottom surface of the clamping groove, the other end of the through hole extends to the outer wall of the bottom surface of the supporting plate, and a rotating shaft is connected to the inner side wall of the through hole in a sliding manner. The connecting plate and the supporting plate can be detachably connected witha wall body by matching the bolt through holes A with bolts, and then the bolts A are rotated to penetrate through the transverse plate and extend into the rotating shaft, so that the transverse plate and the rotating shaft can be detachably connected; and then the rotating bolt B penetrates through the rotating plate and the bolt through hole B and is detachably connected with the inner wall ofthe nut, meanwhile, the he