Patent ID: 8100590

Claim:
A maintenance mechanism for lighting equipment in a closed space of high radiation activity, comprises a multi-section slide rail on one side of a passage, a lamp base located and moveable on the multi-section slide rail, a lighting handle, a lead glass lamp guard to prevent radiation leak into the passage, a convex lead plug to seal the maintenance hole, a stainless steel fixation plate to fix the convex lead plug, in which the stainless steel fixation plate uses a fixation plate screw to be fixed onto the maintenance hole side of the passage, and on the top of the fixation plate there are a L-shaped long iron plate and a L-shaped short iron plate; wherein the convex lead plug that uses an axial screw on the L-shaped long iron plate as axis to move and rotate, having a lead plug opening positioning screw on the L-shaped short iron plate and a lead plug closing positioning screw in the bottom of the stainless steel fixation plate, in order to open and close the maintenance hole; and wherein the multi-section slide rail extends and recedes on one side along the passage during maintenance operation through the handle, pulling the lamp base out of the passage, and pushing back the lamp base along the multi-section slide rail to its original place after the maintenance operation.