In large-scale open-pit mines, reels are usually installed in maintenance workshops and various mobile maintenance vehicles to carry out pneumatic maintenance, welding and cutting, tire pressure retention for various mining, excavation, loading and conveying machinery and equipment, and fill various fuels such as diesel fuel and kerosene for operating equipment, as well as lubricating oils such as engine oil and gear oil; It is often installed in underground roadways in underground mines for fire safety, dust cleaning, and can be seen everywhere as pneumatic maintenance and assembly in equipment maintenance workshops on the ground. The installation and use of reels in the mining field will greatly improve the efficiency of equipment maintenance and the timeliness of energy supply of various oil products.