What is the patented technology of Mei Tianle rotating Huang Yutang?

Reduction gear box and rotatable mop head. According to Aiqi's information, Zhejiang Meitianle Household Products Co., Ltd. applied for a patent name: reduction gear box and rotatable mop head. Date of application: 202 18-09. The reduction gear box is arranged in a rotatable mop head, and comprises a shell and a motor which can rotate back and forth and is arranged in the shell.