The utility model discloses an evaporate cabinet lock, the on -line screen storage device comprises a base, the base top is provided with the backup pad of two sets of parallels, and backup pad bottom and base welding, is provided with movable block, contact in the backup pad and is located the connecting plate between movable block, the contact, and the contact front end is for the arc of upwards perk, the movable block below is provided with reset spring, the contact comprises parallel contact clamping part and the middle superimposed contact intermediate layer in both sides, the movable block comprises both sides parallel arrangement's movable block clamping part and middle superimposed movable block intermediate layer, and between the inside intermediate layer and intermediate layer of contact and movable block, be fixed connection between intermediate layer and the clamping part, the connecting plate becomes the integral type structure by superimposed connecting plate sandwich braze. The beneficial effects of the utility model are that: structural design is equitable, and inside comprises the multilayer sheetmetal, and increase of service life save the cost more, and evaporate cabinet lock has the reset function.