Oral cavity dilator for animal husbandry

The utility model relates to the technical field of oral cavity distraction equipment, in particular to an oral cavity distraction device for animal husbandry. According to the technical scheme, the device comprises a box body, the upper surface of the inner wall of the box body is rotationally connected with a bidirectional threaded rod, the top of the bidirectional threaded rod is fixedly connected with a first circular fixing plate, one side of the bottom of the first circular fixing plate is fixedly connected with a first handle, and the first handle is movably connected with the box body; the outer wall of the bidirectional threaded rod is in threaded connection with a pair of inner threaded lantern rings, the outer walls of the inner threaded lantern rings are fixedly connected with one end of a supporting plate, the other end of the supporting plate is fixedly connected with a fixing block, the upper end of the fixing block is connected with a rubber supporting block, and two screw rods movably penetra