The invention discloses an electric bicycle frame folding structure which comprises a transverse pipe, a movable middle pipe and a rotating shaft sleeve. A front fork is rotationally mounted at the front end of the transverse pipe, and a fixed middle pipe is arranged at the rear end; the movable middle pipe is connected with the rotating shaft sleeve through a connecting pipe, a rear fork is hinged to the connecting pipe, and a damping spring is installed between the rear fork and the movable middle pipe. A rotating shaft matched with the rotating shaft sleeve is arranged on the transverse pipe; the rotating shaft is sleeved in the rotating shaft sleeve through two bearings; the fixed middle tube and the movable middle tube are coaxial, and a seat tube penetrates through the fixed middle tube and the movable middle tube. The folding structure has the beneficial effects that the folding structure can realize folding of the bicycle frame, the space of the folded bicycle frame is saved to the maximum extent, the integrity of the transverse pipe can be kept structurally, the internal space of the transverse pipe is fully improved, and a battery with larger capacity can be arranged in the transverse pipe; according to the folding structure, due to the fact that a folder does not need to be additionally arranged on the bicycle frame transverse pipe, the appearance is smoother and more attractive in integrity.
本发明公开了一种电动自行车车架折叠结构,包括横管、活动中管和转轴套;所述横管前端转动安装有前叉,后端设置有固定中管;所述活动中管和转轴套经连管连接,所述连管上铰接有后叉,所述后叉和活动中管之间安装有减震弹簧;所述横管上设置有与所述转轴套相适配的转轴;所述转轴经两个轴承套装在所述转轴套内;所述固定中管和活动中管同轴,且二者内贯穿有座管。本发明的有益效果在于,本发明的折叠结构可实现车架对折,最大限度节省了车架折叠后的空间,且在结构上能保留横管的整体性,充分提高了横管内部空间,使得横管内部可安置更大容量的电池;本发明的折叠结构因为车架横管无需加装折叠器,外观整体性上更加流畅美观。
Electric bicycle frame folding structure
一种电动自行车车架折叠结构
2021-09-10
Patent
Electronic Resource
Chinese
Folding frame and folding electric bicycle with folding frame
European Patent Office | 2015
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