Waterproof air type bus duct

The utility model relates to the technical field of electrical equipment, and discloses a waterproof air-type bus duct, which comprises a mounting rack, sealing blocks are arranged on the upper side and the lower side of an inner cavity of the mounting rack, pay-off grooves which are uniformly distributed are formed in the sealing blocks, and a sealing plate is movably arranged in the mounting rack. According to the utility model, the sealing block and the pay-off groove are clamped at the outer side of a line, external water can be prevented from entering the bus duct along a lead, damage to elements in the bus duct is avoided, the service life of the bus duct can be prolonged, and the sealing plate is installed in the mounting rack, so that the service life of the bus duct is prolonged. The first spring pushes the fixing block, and the fixing block is inserted into the fixing groove, so that the sealing plate and the mounting frame can be kept stable, the interior of the mounting frame can be sealed, and th