Outer cover of weaving machine

The utility model relates to the technical field of dobby loom production, in particular to a loom outer cover which comprises a first outer shell and a second outer shell, dustproof boxes are installed on the tops of the first outer shell and the second outer shell, connecting boxes are installed on the tops of the dustproof boxes, and connecting blocks are installed on the inner side walls of the connecting boxes. A rotating wheel is installed at the end, away from the connecting box, of the connecting block, a connecting rod is installed outside the rotating wheel, a fixing column is installed outside the connecting rod, a through groove is formed in the position, corresponding to the fixing column, outside the rotating wheel, and an extension spring is installed between the rotating wheel and the connecting box. A sliding rod is installed outside the rotating wheel and located between the connecting rod and the through groove, the sliding rod extends to the outside of the connecting box, compared with an