Assembly guardrail for road construction

The utility model discloses a road construction assembled guardrail which comprises two fixing piles, supporting strips are arranged on the outer walls of the opposite sides of the fixing piles, a guardrail frame body is arranged above the supporting strips, the guardrail frame body is located between the fixing piles, sliding blocks are connected to the outer walls of the tops of the supporting strips in a sliding mode, and the sliding blocks are connected to the outer walls of the tops of the supporting strips in a sliding mode. A limiting block is integrally formed on the outer wall of the bottom of the sliding block, a limiting groove is formed in the supporting strip, the limiting block is slidably connected to the interior of the limiting groove, a groove is formed in the outer wall of the top of the sliding block, an adjusting screw rod is rotatably connected to the interior of the groove through a bearing, and a fixing plate is welded to the outer wall of the top of the sliding block. Through the arra