Connecting structure for ventilation plate of clean workshop

The utility model discloses a connecting structure for a ventilation plate of a clean workshop, and relates to the technical field of ventilation plate installation, the connecting structure for the ventilation plate of the clean workshop comprises a ventilation pipe, a ventilation plate is arranged at an air outlet of the ventilation pipe, a butt joint groove is formed in the surface of one side, facing the ventilation plate, of the ventilation pipe, and the butt joint groove is communicated with the ventilation plate. A butt-joint plate matched with the butt-joint groove is fixedly connected to the surface of the side, facing the butt-joint groove, of the ventilation plate, a built-in control cavity is formed in the inner wall of the ventilation pipe, a fixing sliding rod with the lower end penetrating into the butt-joint groove in a sliding mode is arranged in the built-in control cavity, and a fixing groove matched with the lower end of the fixing sliding rod is formed in the upper surface of the butt-joi