Device for preventing flowing grout pollution in external wall concreting process

The utility model discloses a device for preventing flowing grout pollution in the external wall concreting process. The device is composed of a finished-product color coated sheet. The finished-product color coated sheet is longitudinally folded to form a 120-degree angle in the width direction of the finished-product color coated sheet. One side of the folding line of the finished-product color coated sheet is fixed to wall face of a shear wall. The other side of the folding line of the finished-product color coated sheet serves as a cantilever. A template strip adheres to the outer surface of the fixing side of the finished-product color coated sheet and the wall face of the shear wall. The upper edge of the template strip is flush with an upper opening in the finished-product color coated sheet. The joint seam position of connection of the finished-product color coated sheet and the wall face of the shear wall is coated with sealant. The pollution to the wall face of the external wall by the concrete flowing grout is avoided through the arrangement of the finished-product color coated sheet on the shear wall, and the device has the advantages that arrangement is simple, the device brings convenience to construction and is obvious in effect, generally suitable for construction application of the concrete external wall, the appearance quality of the whole wall face can be guaranteed, the construction efficiency is improved greatly, and meanwhile the construction cost is reduced.