The utility model provides a clock spring with torsional spring location structure which the purpose is simple to operate, is suitable for the model with wide, the utility model discloses an active cell, stator, locking piece, lever, cylindric lock and torsional spring, the active cell main part is hollow cylindrical structure, and the upper end is circular sheet, and the inboard intermediate position of hollow circular cylinder is equipped with four bosss, and lower extreme department is provided with the constant head tank, outer diameter of the stator equals active cell circular sheet external diameter, and the internal diameter is greater than active cell hollow circular cylinder external diameter, and the stator occupy active cell hollow cylinder's the outside, the inside draw -in groove that is equipped with of stator hollow cylinder, the locking piece upper end is equipped with four " door " font pothooks, and " door " font pothook passes the stator, is in the same place with active cell hole boss lock, lever power arm holds to circular -arc, and resistance arm end is the boss form, and it has the square groove to open at the power arm intermediate position, puts into the torsional spring in the square groove, opens the perforating hole to the side of the lever, inserts the cylindric lock to run through the torsional spring centre bore, the extension at torsional springboth ends, one end card are on the constant head tank of active cell, and other end card is on the lever.