Deflection adjusting device for key groove of valve rod of limiting valve

The utility model relates to the field of valve adjusting equipment, and discloses a limiting valve rod key groove deflection adjusting device which comprises a first semi-ring, a second semi-ring is movably connected to the outer surface of one side of the first semi-ring, and a rotary supporting column is fixedly connected to the outer surface of one side of the first semi-ring. The valve rod rotating device comprises a first-stage transmission rod, a first-stage spring, a second-stage spring, a handle clamping buckle, a rotating handle, a handle locking column, a locking groove, an embedded transverse rod, a transmission rod clamping buckle, a second-stage transmission rod, a locking supporting column and a T-shaped sliding block. Through the arrangement of the valve rod rotating device, the defects of existing rotating equipment are firstly overcome, the whole equipment can meet the clamping requirements of valve rods with different thicknesses, the diversification performance of the equipment is improved