Under-bridge assembled safety channel based on bridge construction

The utility model discloses an under-bridge assembly type safety channel based on bridge construction. The under-bridge assembly type safety channel comprises a track, a base and guide wheels. The safety channel has the beneficial effects that the four roller seats are symmetrically arranged at the bottom of the base in the safety channel in the front, back, left and right directions, the guide wheels are arranged on the roller seats, and the locking screw rod is screwed on the base; according to the safety channel, the guide wheels are arranged, so that a worker can quickly move an assembled and formed part of the safety channel to a proper position for assembly through the guide wheels, the stability during moving is improved by arranging the four guide wheels, the safety channel can be locked through the locking screw rod, the safety channel is prevented from sliding, and a rectangular through hole is formed in the side cover in a penetrating mode, so that the safety channel is convenient to assemble and d