Toothbrush head

A toothbrush head, comprising:

• a toothbrush round head, which is provided with bristles on one side and a first connecting structure on an other side, the toothbrush round head being provided with a first transmission groove on a side wall;
• a large body, which is provided with a mounting groove, the mounting groove being provided with a mounting base for mounting the toothbrush round head, the mounting base being provided with a second connecting structure that cooperates with the first connecting structure, and the mounting base being rotatably connected to the toothbrush round head;
• and
• an eccentric inner shaft, which is provided within the large body, the eccentric inner shaft being movably connected to the large body, the eccentric inner shaft being provided with a transmission structure that cooperates with the first transmission groove;
• one of the first connecting structure and the second connecting structure is a rotating shaft, and the other is a sleeve head, the sleeve head is provided with a rotating hole corresponding to a shape of the rotating shaft, the rotating shaft is provided therein with a magnetic attraction iron post, the sleeve head is provided therein with two magnetic attraction members attracting to each other, and the two magnetic attraction members are located on opposite sides of the magnetic attraction iron post.