Screw sealing type battery box

The utility model discloses a screw sealing type battery box which comprises a main frame, a lower cover and an upper cover, the upper cover comprises a square plate, an inclined extending frame and a panel, an adjustable maintenance assembly in contact connection with the panel is arranged below the panel, and the adjustable maintenance assembly comprises a lead wire, an inclined plate, a spring, a guide base frame and an adjusting plate; according to the screw sealing type battery box, the upper cover and the lower cover are respectively fixed at the upper end and the lower end of the main frame, the panel is provided with the maintenance window and the adjusting window, the adjustable maintenance assembly capable of generating displacement is arranged at the adjusting window, and overhaul and maintenance can be performed at the maintenance window; the maintenance window and the adjusting window are closed, the sealing performance is guaranteed, dust invasion is avoided, when the battery pack and the lead w