Weak current box convenient to maintain

The utility model discloses a weak current box convenient to maintain, which relates to the technical field of weak current boxes, solves the problem that the weak current box in the prior art is inconvenient to maintain, and has the technical key points that the weak current box comprises a shell, and a mounting plate is arranged in the shell and is fixedly connected into the shell through a mounting plate fixing unit; the mounting plate fixing unit comprises a fixing rod, a rotary fixing head and a spring, the fixing rod is fixedly connected to the bottom of the shell, the fixing rod is a round rod, the rotary fixing head is in a kidney-shaped ring shape, a butterfly-shaped piece is arranged on the rotary fixing head and perpendicular to the rotary fixing head, the spring sleeves the fixing rod, and a spring check ring is arranged at the end, away from the bottom face of the shell, of the fixing rod; the spring and the rotary fixing head clamp the mounting plate, a fixing hole matched with the fixing rod is