Overturning dowel type maintenance guardrail

The utility model relates to a turnover dowel type maintenance guardrail. The turnover dowel type maintenance guardrail comprises a guardrail body, a limiting assembly and a working platform, the guardrail body is fixedly connected with the limiting assembly, and the limiting assembly is hinged to the working platform. The limiting assembly comprises a limiting plate and a locking bolt, a mounting block is fixedly arranged on the limiting plate, and the mounting block can be hinged to the working platform through a hinge shaft; a connecting plate is fixedly arranged between the guardrail body and the limiting plate; a locking bolt limiting block is arranged on the limiting plate, and a locking bolt is arranged in the locking bolt limiting block in a sliding manner; a groove is formed in one end of a handle of the locking bolt, and a square stop block capable of being matched with the groove of the handle of the locking bolt is arranged on the limiting plate; and a mounting clamping block is fixedly arranged o