Road surface marking device

The utility model provides a road surface marking device, which relates to the technical field of road construction, and comprises a marking machine main body, trundles are arranged at the bottom of the marking machine main body, support plates are designed on the two sides of the trundles, the tops of the support plates are fixedly connected with rotating plates, the tops of the rotating plates are fixedly connected with mounting blocks, and the mounting blocks are fixedly connected with the bottom of the marking machine main body. A control rod is arranged at the top of the mounting block, a through hole is formed in the bottom of the mounting block, and a clamping plate is movably connected to the inner wall of the through hole. According to the novel ruling machine, the trundles are designed, the trundles, the supporting plate and the rotating plate form universal wheels, the advancing direction of the ruling machine is conveniently controlled, the trundles are conveniently fixed and supported through the