A folding bicycle and its frame

Abstract

The invention discloses a frame for a folding vehicle. The frame is used for connecting a front wheel frame and a rear wheel frame and comprises a middle pipe section; telescopic pipe sets symmetrically sleeving the two ends of the middle pipe section, wherein the telescopic pipe set comprises a plurality of pipe units which sleeve together, the first pipe units on the two ends of the telescopic pipe set are slidably connected to the middle pipe section in a sleeved mode, the tail end pipe units are connected with the front wheel frame and the rear wheel frame respectively; a first locking device which is arranged on the telescopic pipe set and used for locking the adjacent pipe units when the frame is unfolded and folded; and a second locking device which is arranged on the middle pipe section and used for locking the first pipe units in the telescopic pipe sets on the two ends when the frame is unfolded and folded. The disclosed frame not only can ensure the folding and unfolding of the frame, but also can ensure consistent mounting strength of the frame with the front wheel frame and the rear wheel frame. The invention further discloses the folding vehicle with the frame.

Description

technical field [0001] The invention relates to the technical field of folding bike production, more specifically, to a folding bike and its frame. Background technique [0002] Taking a bicycle as an example, the frame is used to provide the installation foundation for the front wheel frame and the rear wheel frame of the entire bicycle. The part used to connect with the front wheel frame is called the front end of the frame, and the part connected to the rear wheel frame is called the frame. rear end. [0003] With the improvement of people's living standards, the needs of life have become more abundant and diverse. Folding bicycles suitable for short-distance urban travel and easy to carry are chosen by more and more consumers. In order to reduce the size, the frames of some folding bikes are set to be telescopic. However, the current telescopic frame is usually only formed by a plurality of pipe sections that are sequentially nested together. Due to the need for nesting...

AI Technical Summary

Problems solved by technology

In order to reduce the size, the frames of some folding bikes are set to be telescopic. However, the current telescopic frames are usually only formed by a plurality of pipe sections that are sequentially nested together. Due to the need for nesting, the car The diameter of the frame gradually decreases from one end to the other end, which leads to different strengths at the two ends connected to the front wheel frame or the rear wheel frame, and the strength of the whole vehicle cannot be guaranteed.

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