Steel square timber keel for supporting shear wall template

The utility model discloses a steel square timber keel for supporting a shear wall formwork. The utility model belongs to the technical field of buildings, the device comprises a steel groove, a clamping groove and a square timber inner core, the lengths of the fixing nails, the steel grooves and the clamping grooves are equal; the steel tank comprises a waist plate and two wing plates; the edges of the long sides of the wing plates extend outwards in an arc manner; a plurality of fixing holes are formed in the wing plates; a plurality of waist holes are formed in the waist plate at equal intervals; the clamping groove comprises a clamping plate and a clamping edge, the edges of the two long edges of the clamping edge extend inwards in an arc mode, the arc extending edges of the two wing plates can be clamped in a groove formed by the clamping plate and the clamping edge, a plurality of kidney-shaped holes are formed in the clamping plate at equal intervals, and the four long edges of the square timber inner