Electric bicycle frame folding structure

Abstract

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.

Description

Technical field [0001] The present invention relates to the field of bicycle technology, and is specifically an electric bicycle frame folding structure. Background technique [0002] The existing electric bicycle folding structure is generally designed in the middle of the frame transverse tube to achieve folding function. The disadvantage is that the folder is generally larger than the cross section of the cross-section, and the folder will bump. Leading the appearance of unlikely affecting the beauty. 2. For the vehicle battery pack, the folder is placed in the transistor, the folder can virtually affect the interior space of the horizontal tube and directly affect the capacity of the battery pack. Because the folder needs to be placed in the middle of the horizontal tube, the horizontal tube needs to be separated from two segments. The interior space separating two sections is far better than a whole section. Inventive content [0003] 1. Technical issues that need to be sol...

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. The folder is generally larger than the cross-section of the transverse tube, and the folder will protrude as a whole

Resulting in unsmooth appearance and affecting aesthetics

2. For vehicle models where the battery pack needs to be placed in the cross tube, the folder will greatly affect the internal space of the cross tube and directly affect the capacity of the battery pack

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