Fixing device for circuit board detection

The utility model discloses a fixing device for circuit board detection. Including a base, l-shaped limiting seats are symmetrically arranged at the upper end of the base; protective plates are fixedon the upper surfaces of the two L-shaped limiting seats; a circuit board body is laid at the upper end of the protection plate; a spring buckle is fixed at the top end of the L-shaped limiting seat;the spring buckle internally comprises a buckle body and a pressing plate, the buckle body is welded to the top end of the L-shaped limiting base through a connecting base, a clip-shaped spring is arranged in the buckle body, one end of the pressing plate is installed on the outer wall of the buckle body, a protrusion is arranged on one side of the pressing plate, and the pressing plate is connected with the upper surface of the circuit board body through the protrusion. By arranging the base, the extension plate, the guide groove, the guide rod, the thread, the hexagon bolt, the control handle, the fixing piece, the L