Adjustable torsional spring driven unfolding missile control surface

The utility model belongs to the field of missile control surface unfolding, and particularly relates to an adjustable torsion spring driven unfolding missile control surface which comprises a base, a U-shaped seat is fixedly connected to the top end of the base, a side plate seat is fixedly connected to the top end of the U-shaped seat, and an adjusting torsion block is fixedly connected to the surface of the side plate seat. Through the structural design of the torsion shaft, the torsion spring, the connecting seat, the connecting rod, the torsion rod and the bearing seat, the torsion shaft is anticlockwise rotated under the assistance of the bearing seat to adjust the torque of the torsion spring, and the torsion spring with the adjusted torque is inserted into an adjusting torsion hole through the torsion rod on one side of the connecting rod to be limited, so that the function of adjusting the torque of the torsion spring is achieved; the problem that missile launching safety is affected due to insuffici