The father of Chen Gongke using the automatic hair washing machine in Leshan, Southwest China's Sichuan province, Sept 16, 2015. (Photo/Weibo.com)

The whole set of equipment. (Photo/Weibo.com)

A 38-year-old man in Southwest China has invented an automatic hair-washing machine and received a national patent after experimenting for 16 years, breaking 18 motorcycle helmets, Chengdu Business Daily reported.

The hair-washing machine consists of a motorcycle helmet, two water tanks and a control panel.

The whole process of using the machine takes place in several stages. First, water and shampoo must be sprayed in the helmets, and at the end hot air is blown through the helmet to dry the hair.

Cheng Gongke, the inventor, said he had the idea because he wanted to make it easier for his paralyzed grandma to wash her hair. Though it has taken him more than a decade, his dream has finally come true.