Pipeline solar heat protection device that expands

The utility model discloses a pipeline solar heat protection device that expands, including first connecting pipe and second connecting pipe, the second connecting pipe is located the right side of first connecting pipe, fixedly connected with bellows between first connecting pipe and the second connecting pipe, the fixed surface of first connecting pipe and second connecting pipe is connected with the elasticity pipe, the inner cavity active connection of first connecting pipe has first steel pipe. The utility model discloses a first connecting pipe, the second connecting pipe, the bellows, the elasticity pipe, first steel pipe, the constant head tank, the holding ring, thread block, first cyclic annular mount pad, first bolt, the second steel pipe, the spout, the activity groove, the cooperation of draw -in groove and fixture block is used, it expands the device when the installation to have solved current solar heat protection, it is relatively poor with the counterpoint effect of steel pipe, and operation