Skull fixing device for neurosurgery craniocerebral operation

The invention relates to the technical field of medical apparatus and instruments, and discloses a skull fixing device for a neurosurgical craniocerebral operation. The skull fixing device comprises a bottom plate, supporting plates are arranged on the left and right sides of the upper surface of the bottom plate, guide rods are arranged on the lower portions of the supporting plates, sliding seats are slidably connected to the middles of the guide rods, the upper portions of the supporting plates are rotatably connected to the left and right ends of lead screws, the middles of the lead screws are in threaded connected with the upper portions of the sliding seats, mounting plates are arranged on the upper surfaces of the sliding seats, sliding rings are arranged on the upper portions of the supporting plates, first sliding blocks are slidably connected to the front sides and the rear sides of the sliding rings respectively, guide columns are arranged on the upper portions of the first sliding blocks, first li