Patent ID: 11903438
Assignee: JIANGYIN DAFEIMA AUTOMOBILE TECHNOLOGY CO., LTD.
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 3:
4. The helmet according to claim 3, wherein the linkage guide annular piece has a D-shaped annular structure, the side of a straight edge of the linkage guide annular piece with the D-shaped annular structure corresponds to the side of an inner arc-shaped surface of the strip-shaped arc-shaped surface, and a connecting part is arranged between the side of the straight edge of the linkage guide annular piece and the side of the inner arc-shaped surface of the strip-shaped arc-shaped surface; and a first through hole is formed in one side of the annular edge of the D-shaped linkage guide annular piece, the first rotating shaft hinged with the chin guard rotation guide is arranged in the first through hole, and the linkage guide annular piece swings around the first rotating shaft under the driving of the driving end of the driving rod.