Explosion-proof structure and digital display instrument

The utility model relates to the technical field of digital display instruments, in particular to an explosion-proof structure and a digital display instrument, which comprise an explosion-proof shell cover and an explosion-proof shell, the explosion-proof shell cover is connected with a positioning block, and one side of the explosion-proof shell is provided with a movable rod, a fixed frame and an elastic fixed plate; the beneficial effects are that during installation, a positioning block is aligned with a supporting plate, an installation strip is inserted into an installation groove, then an explosion-proof shell cover is pressed, pulling force is applied to an elastic fixing plate, a movable rod drives a limiting plate to stretch a rectangular spring, and one end of the elastic fixing plate is extruded to be inserted into an insertion groove; when the anti-explosion shell cover and the anti-explosion shell are inserted into the bottom, the fixing blocks are bounced into the fixing holes, so that rapid i