Dragon crane

The dragon traveling vehicle comprises a vehicle head rod and a double-leg rod, a fixed plug is arranged on the lower portion of the vehicle head rod close to a front wheel, a protruding column is arranged on the upper portion of the plug, and the protruding column is controlled to stretch out and draw back through a spring on the lower portion. A fixed socket is arranged at the front end of the double-leg rod and matched with the plug in a pluggable mode, a button is arranged on the upper portion of the socket, a column cavity is formed in the lower portion of the button, and the protruding column can be plugged into the column cavity to be matched with the button in a pressing mode. Clamping grooves are formed in the two sides of the plug and are in sliding fit with the clamping positions of the raised lines in the socket. One side of the upper end of the convex column facing the socket is an inclined plane. The spring is located inside the plug. A pedal and a rear wheel are arranged on the rear portion of