Windproof device for steel structure bridge deck welding

The utility model relates to a windproof device for welding a bridge floor of a steel structure bridge. The windproof device comprises a rectangular protective frame and a cover plate (5), wherein the rectangular protective frame is enclosed and fixed by a front wind shield (1), a rear wind shield (2), a left wind shield (3) and a right wind shield (4); the cover plate (5) is arranged on the rectangular protective frame; the cover plate is connected with the front wind shield and the rear wind shield in a sliding mode, and a welding operation opening (6) is formed in the top face of the rectangular protection frame. The cover plate is arranged on the rectangular protection frame in a sliding mode, the size of a welding operation opening is adjustable, the windproof effect is good in the welding process, installation and use are convenient, the welding quality and welding efficiency of a steel structure bridge deck are improved, the construction cost is reduced, safety of constructors is guaranteed, and repeat