Cold -formed thin -walled type self -supporting formula gutter

The utility model provides a cold -formed thin -walled type self -supporting formula gutter, including the water drainage tank body, bottom plate, web, flange plate and edge of a wing turn -up that the water drainage tank body connected gradually including integrated into one piece, the web setting is at the relative both sides edge of bottom plate and upwards extend, and the flange plate setting is on the web and to the web outside extending, and edge of a wing turn -up extends to the flange plate downside and sets up, is provided with on the bottom plate to fall into water mouthful, and a rainwater fill is connected in mouthful department of falling into water in the bottom plate bottom surface. This cold -formed thin -walled type self -supporting formula gutter material adopts thin steel clod wash integrated into one piece, and the preparation simple installation provides the condition for the batch production, need not ad hoc supporting frame structure, realize the self -supporting of gutter, and the anti