Patent ID: 11917951
Assignee: NANJING CHERVON INDUSTRY CO., LTD.
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 8:
9. The sweeper head as claimed in claim 1, wherein a projection of the shield on a plane perpendicular to the first axis is substantially an arc, a point of intersection of the arc and the first plane is defined to be an installation point of the shield, the arc has a first end and a second end, a distance between the first end and the installation point is greater than a distance between the second end and the installation point, a first included angle is formed by intersection of a connection line between the first end and the first axis and a connection line between the installation point and the first axis, a second included angle is formed by intersection of a connection line between the second end and the first axis and the connection line between the installation point and the first axis, and a ratio of the first included angle to the second included angle is greater than or equal to 5 and is less than or equal to 7.