The utility model relates to air path board technical field especially is a kind of control module air path board for
urban rail tread cleaning, including upper cover, middle layer board and lower cover, middle layer board is located between upper cover and lower cover and three series detachable settings, embedding window is set up in middle layer board middle area, and air passage board is inlayed in embedding window. Air passage board is equipped with air inlet cavity, pressure reducing valve containing cavity,
solenoid valve containing cavity and air outlet cavity, and there is the first passageway that is connected with
solenoid valve containing cavity and air outlet cavity, the second passageway that is connected with
solenoid valve containing cavity and pressure reducing valve containing cavity and the third passageway that is connected with pressure reducing valve containing cavity and air inlet cavity in the inside through. Upper cover is correspondingly set with pressure reducing valve hole, solenoid valve hole, air outlet hole and air inlet hole, which are consistent with each containing cavity. The design realizes air passage board independent replacement by modularization detachable structure, reduces maintenance cost;Reasonable channel
layout ensures that air
pressure transmission is stable, and cooperation upper cover corresponding opening realizes component accurate installation, satisfies the efficient control demand of cleaning
system.