How to install the electric fan retaining ring

There is a small hole at both ends of the opening of the split retaining ring. There is a tool called a caliper, and the tip of the pliers can be opened with a single pressure.
General people don't have this tool at home, so they can only use the earth method to pry it in. You can pry its mouth open and put it in, and then clamp it back with pliers. Under normal circumstances, if the tie section is lost, iron wire can also be used instead.