The diesel tricycle has a compact structure. Through the special design of cab (front part), suspension, frame, cargo box and lifting mechanism, the structure is compact, the turning radius is small, and it is very flexible. It is suitable for flexible operation in narrow space in well and alley ramps.According to the characteristics of underground damp air, insufficient light and slippery road surface, the vehicle lamps and electrical components are improved to enhance the waterproof and moisture-proof performance, and special anti-slip tires are selected to have strong obstacle overcoming ability and good safety.Powerful, large torque, excellent climbing and starting performance.