US 9,809,243 B2
Frame structure and trolley using frame structure
Tao Chen, Wuxi (CN); Chuanrong Pan, Wuxi (CN); Weijian Lan, Wuxi (CN); Hua Zhou, Wuxi (CN); Yong Yang, Wuxi (CN); and Rong Han, Wuxi (CN)
Assigned to Chigoo Interactive Technology Co., Ltd., Wuxi, Jiangsu (CN)
Appl. No. 15/26,040
Filed by CHIGOO INTERACTIVE TECHNOLOGY CO., LTD., Wuxi, Jiangsu (CN)
PCT Filed Aug. 26, 2014, PCT No. PCT/CN2014/085175
§ 371(c)(1), (2) Date Mar. 30, 2016,
PCT Pub. No. WO2015/043348, PCT Pub. Date Apr. 2, 2015.
Claims priority of application No. 2013 2 0613943 U (CN), filed on Sep. 30, 2013.
Prior Publication US 2016/0244083 A1, Aug. 25, 2016
Int. Cl. B62B 5/00 (2006.01); B62B 3/14 (2006.01); H01R 13/627 (2006.01)
CPC B62B 5/00 (2013.01) [B62B 3/14 (2013.01); B62B 3/1404 (2013.01); B62B 3/1424 (2013.01); H01R 13/6275 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A frame structure comprising:
a frame body having a front bracket and a frame base; and
an auxiliary frame fixedly connected to the frame body, an upper end portion of the auxiliary frame being connected to the front bracket of the frame body, and a lower end of the auxiliary frame being connected to the frame base at the rear of the front wheels of the frame; and
a connector located below the frame base and configured to connect to a charging connector seat, the connector including first, second, third and fourth hooks, the first and the third hooks being configured to cooperate with each other so that a first hook of a frame structure is connectable to a third hook of another frame structure when the frame structure and the another frame structure stacked together, and the second and fourth hooks being configured to cooperate with each other so that a second hook of a frame structure is connectable to a fourth hook of the another frame structure when the frame structure and the another frame structure are stacked together.