Protective device applied to lithium titanate battery BMS safety monitoring equipment

The utility model discloses a protection device applied to lithium titanate battery BMS safety monitoring equipment. The protection device comprises a protection assembly and an adjusting assembly. The protection assembly comprises two sealing plates, the two sealing plates are arranged side by side in the first direction, one of the two sealing plates is fixedly connected with the shell, and the other sealing plate is slidably connected with the shell; an extrusion section is formed at one end of each sealing plate capable of sliding, and an elastic element is arranged between the two sealing plates; the adjusting assembly comprises a first fixing shaft perpendicularly arranged on the shell, two extrusion rods evenly arranged in the circumferential direction of the first fixing shaft are arranged on the first fixing shaft, and the extrusion rods can extrude the side wall of the extrusion section when rotating, so that the slidable sealing plate is driven to move in a reciprocating mode. The extrusion section