Folding hanging ladder for fire fighting truck equipment box

The invention relates to a fire fighting truck equipment box folding hanging ladder, and relates to the field of fire fighting trucks, the fire fighting truck equipment box folding hanging ladder comprises a supporting ladder arranged on an equipment box, one end of the supporting ladder is rotatably provided with a rotating ladder, the other end of the supporting ladder is slidably provided with an extension ladder, the rotating ladder is rotatably provided with a driving rod, and the supporting ladder is slidably provided with a driving block; the driving block slides in the length direction of the supporting ladder, the driving rod and the driving block are rotationally arranged, the driving block is provided with a connecting assembly used for driving the extension ladder to extend or retract, the supporting ladder is provided with a first clamping and fixing piece used for limiting rotation of the driving rod, and the first clamping and fixing piece is provided with a second clamping and fixing piece use