Protection structure for disassembly and assembly of printed circuit board

The utility model relates to the technical field of printed circuit boards, in particular to a protection structure for disassembly and assembly of a printed circuit board. The circuit board comprises a circuit board body, four mounting holes are uniformly formed in the surface of the circuit board body, a reinforcing device is arranged on the surface of the circuit board body, the reinforcing device comprises four limiting strips, the four limiting strips are connected to the four corners of the circuit board body in a clamped mode respectively, every two limiting strips form a group, and the four limiting strips are arranged on the surface of the circuit board body in a clamped mode. Screw rods are slidably mounted in the two limiting strips, reinforcing rods are connected to the sides, close to each other, of the two screw rods in a threaded mode, positioning blocks are fixedly mounted on the side walls of the limiting strips, sliding rods are slidably connected to the interiors of the two positioning bloc