Adjustable optical bracket locking device in engineering application

The invention provides an adjustable optical bracket locking device in engineering application. The device comprises a movable plate, a fixed plate, rotary screw rods, support tables and stiffeners, wherein the rotary screw rods penetrate through the fixed plate to be fixed on the movable plate; the relative position between the movable plate and the fixed plate can be adjusted through the rotaryscrew rods; the support tables arranged at corresponding positions on the side surfaces of the movable plate and the fixed plate; one ends of the stiffeners are fixed on the support table on the movable plate; and the other ends of the stiffeners are fixed on the corresponding support table on the fixed plate. According to the device, the support tables are correspondingly arranged on the side surfaces of the movable plate and the fixed plate, and the stiffeners are fixed on the support tables, so that the advantage that optical brackets are adjustable is kept, and the problem that the adjustable optical brackets are