A folding frame and a folding electric vehicle

Abstract

The invention discloses a folding frame and an electric folding vehicle. The folding frame comprises a middle bearing seat, wherein a saddle supporting tube is telescopically inserted in the middle bearing seat, a limiting rod capable of moving synchronously with the saddle supporting tube is in pivoted connection with the saddle supporting tube, the tail end of the limiting rod movably abuts against a pivoted connection part of a back frame, and the pivoted connection part is in pivoted connection with a first side of the middle bearing seat and is supported on the first side in an unfolded state; a first end of a pull rod is in pivoted connection with the back frame, a second end of the pull rod penetrates through a limiting hole in the middle bearing seat and is in pivoted connection with a front frame, the front frame is in pivoted connection with a second side of the middle bearing seat, and the pull rod is matched with the back frame and the front frame to form a linkage mechanism. According to the folding frame and the electric folding vehicle, the frame can be folded and unfolded quickly, interference which can occur between the pull rod and a crank is avoided by changing structures and position relations of folding components, and machining and mounting requirements of the pull rod are reduced; the pull rod is located in the limiting hole all the time, so that safety accidents cannot be caused, and the whole vehicle driving safety is greatly improved.

Description

technical field [0001] The invention relates to a vehicle frame and an electric vehicle, in particular to a folding vehicle frame and an electric vehicle using the folding vehicle frame. Background technique [0002] Electric vehicles are more and more accepted by the public because of their convenience, environmental protection and other advantages. The electric vehicle is based on the structure of the existing bicycle and is modified. By adding batteries, drive systems and electronic control systems, the vehicle can be driven by electric energy to run quickly. [0003] Most traditional electric vehicles are bulky and complex in structure, and users feel that they are not very light when using them, especially in complex environments such as going up and down stairs, elevators and subways, etc. The disadvantages of traditional electric vehicles are very obvious, while ordinary bicycles rely on manpower to provide power. It is time-consuming and laborious, and cannot meet t...

AI Technical Summary

Problems solved by technology

[0005] However, the folding method of the existing folding electric vehicle has the following problems: the front wheel and the rear wheel are on different planes after folding, and cannot be moved by the wheels, and manual handling is required, and the overall structure of the electric vehicle is relatively large, so that after folding The handling of electric vehicles is more difficult

[0007] 1. In the above structure, the connection between the front frame and the rear frame is realized through a tie rod. When connecting, the tie rod needs to bypass the crank of one pedal. Once the design and manufacture of the tie rod are not qualified or the position of the installation is not accurate enough, it may cause The phenomenon of interference between the tie rod and the pedal affects the riding comfort, and even causes the problem that the crank cannot rotate normally, so the processing and installation requirements are high

[0008] 2. Once the end of the tie rod connected to the front frame is loose, the loose end is easy to reach the bottom surface, and it is very easy to cause a safety accident in the state of high-speed driving

[0009] 3. On the other hand, although the structure of the whole vehicle is relatively compact after folding, once the control is not in place when folding, there will be problems of interference and rubbing of various parts, which will easily cause damage to contact parts

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