Circular concave preformed groove template for secondary grouting of equipment foundation

The utility model relates to a circular concave preformed groove template for secondary grouting of an equipment foundation. The device comprises an outer ring module, an inner ring module and a connecting steel plate, l-shaped flat steel is fixed to the upper sides of the two ends of each outer ring module and the upper side of the two ends of each inner ring module respectively. The flat steel is provided with round holes, the adjacent inner ring modules and outer ring modules penetrate through the round holes formed in the flat steel through screws and are fixed through nuts, all the outerring modules are connected into a large circle, all the inner ring modules are connected into a small circle, and each outer ring module is connected with the corresponding inner ring module through aconnecting steel plate. When the secondary grouting preformed groove formwork is used, the outer ring formwork and the inner formwork are fixed to an upper anchor plate of a foundation in a suspendedmode through the connectin