Patent ID: 11896116
Assignee: SHENZHEN BLUE DREAM DIGITAL TECHNOLOGY CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An electric toothbrush rotating replacement head device, wherein the device comprises a toothbrush replacement head body, the toothbrush replacement head body comprises a toothbrush handle and a toothbrush head, the toothbrush handle defines a cavity, and the toothbrush head is disposed on a top of the cavity;
the device comprises:
an elastic connecting rod disposed in the cavity, and a top of the elastic connecting rod defining a first pin hole;
a spring limiting disc disposed on a bottom of the elastic connecting rod;
a pin disposed in the first pin hole, and a diameter of the first pin hole being greater than a diameter of the pin;
a first spring limiting block and a second spring limiting block disposed on two sides of the elastic connecting rod respectively; and
a compression spring disposed on the spring limiting disc, and the elastic connecting rod being disposed in the compression spring; and

the toothbrush head comprises a convex block, the convex block defines a second pin hole, and the elastic connecting rod is inserted into the second pin hole through the pin and connected to the toothbrush head.