▎ 摘　　要

NOVELTY - The utility model claims a new portable breathing training device, comprising a hollow rod, the hollow rod comprises a PE substrate layer; coating nano-silver graphene fibre layer, and the left end of the hollow rod outer surface fixedly connected with the clamping seat; the right side of the clamping seat is provided with a clamping groove; and the outer surface of the clamping seat is sleeved with a balloon main body; the outer surface of the hollow rod is sleeved with a clamping plate; and the outer surface of the hollow rod is provided with a thread groove, at the same time; the outer surface of the thread groove is connected with a limiting plate; the coating nano-silver coated on the inner surface of the PE substrate layer; and the inner surface of the graphene fibre layer is connected with the outer side of the PE substrate layer by environment-friendly acrylic glue water. The utility model is provided with a hollow rod, a clamping seat, a balloon main body, a clamping groove and a clamping plate and a threaded groove, a limiting plate, nano-silver coating and a graphene fibre layer, the device has the function of sterilizing and fast and firmly detecting, so as to bring great convenience for the use of people.