Dual-cantilever basket assembly for automatically spraying inner wall of oil tank

The invention relates to a dual-cantilever basket assembly for automatically spraying the inner wall of an oil tank. The basket comprises a support bar, a top support block, a slewing support, a left cantilever beam, a right cantilever beam, spray gun trolley rails, spray gun trolleys, single baskets and the like. The lower end of the support bar is fixed on the ground; a rotating hanger is disposed at the top end of the support bar; the rotating hanger can drive a construction platform to rotate around the support bar; spray guns at the front ends of the left and right cantilever beams can spray any position of the inner wall of the oil tank; each of the left and right cantilever beams is provided with a spray gun trolley tractor; the spray gun trolley tractors can drive the spray gun trolleys to move along the spray gun trolley rails so as to spray the top end of the oil tank. The dual-cantilever basket assembly has the advantages such that the assembly allows the inner wall of the oil tank to be fully automatically sprayed, no constructor needs to be in the oil tank, construction is safe and reliable, the structure is simple and flexible and reliability is high.