US 12,433,380 B2
Folding and unfolding labor-saving automatic structure and umbrella
Yujin Cai, Xiamen (CN)
Assigned to Sun City (xiamen) outdoor Technology Co., Ltd., Xiamen (CN)
Filed by Sun City (xiamen) outdoor Technology Co., Ltd., Xiamen (CN)
Filed on Jul. 20, 2023, as Appl. No. 18/224,172.
Claims priority of application No. 202310573393.4 (CN), filed on May 20, 2023.
Prior Publication US 2024/0381986 A1, Nov. 21, 2024
Int. Cl. A45B 25/16 (2006.01)
CPC A45B 25/16 (2013.01) 10 Claims
OG exemplary drawing
 
1. A folding and unfolding labor-saving automatic structure, comprising:
a main body seat having an accommodation cavity formed therein;
a moveable button moveably arranged inside the main body seat and having a slide assembly arranged thereon;
a baffle assembly arranged inside the accommodation cavity and located below the moveable button;
an H-shaped lever rotatably arranged inside the accommodation cavity, comprising a rotating shaft arranged inside the accommodation cavity and two lever arms rotatably connected to the rotating shaft, wherein one lever arm of the two lever arms above the rotating shaft is a power arm, the other one lever arm of the two lever arms below the rotating shaft is a resistance arm, the power arm is provided thereon with power arm protrusions, the power arm protrusions moveably abut against the slide assembly, and the resistance arm abuts against the baffle assembly.