Patent ID: 9513022
Filing Date: 2016-12-06
CPC Classification: F24F

Claim Text:
1. A ventilating fan, comprising: a ventilating fan body located on the indoor side, an outdoor pipe hood located on the outdoor side, a ventilating fan mounting member located between the ventilating fan body and the outdoor pipe hood, and a panel removably mounted to a front of the ventilating fan body, the ventilating fan mounting member comprises a cylinder and a flange, and the outdoor pipe hood comprises a pipe hood base and a back cover, wherein, the pipe hood base comprises a base plate with a circular opening and a pipeline fixing ring removably mounted to the base plate, the pipeline fixing rind comprising a latch portion and a connection portion, the connection portion being connected to an expansion pipe and having a diameter smaller than that of the circular opening, the latch portion including a concentric circular ring having a diameter larger than that of the connection portion, a peripheral edge of the concentric circular ring having a folded edge extending toward the connection portion such that a hollow circular ring is formed between the folded edge and the connection portion; wherein the pipe hood base being configured such that, after the base plate is mounted to an outdoor wall, one end of a hollow expansion pipe is passed through the circular opening of the base plate and connected to the connection portion of the pipeline fixing ring, and then the pipeline fixing ring is mounted to the base plate such that the hollow circular ring encircles a protrusive circular ring of the circular opening of the base plate; the other end of the hollow expansion pipe is connected to the cylinder of the ventilating fan mounting member.