Four-link body folding box type pushable portable bicycle

Abstract

A four-link body folding box type pushable portable bicycle, including a body, a front fork, a V-shaped folding handle, a seat, a front wheel, a rear wheel, a box and a driving mechanism. The inclined beam and the rear vertical beam form a four-link folding body. The bottom leaf of the lower seat tube is connected with the rear end of the upper inclined beam and the upper end of the rear vertical beam and can be locked with the upper inclined beam. The front fork is connected with the front pipe. The round tube hole is rotated and connected, and the V-shaped folding handle is installed in the front fork tube of the front fork. The left and right handles of the V-shaped folding handle can be locked with each other. It is connected with a swivel hook and a hook. After the body is folded, the swivel hook of the carriage hooks the hook of the trunk, so that the folded body can be confined in the box; the driving mechanism includes a central shaft, a countershaft, a crank, a pedal, and a front stage. Sprocket, front small sprocket, rear sprocket, freewheel, front chain and rear chain.

Description

Technical field: [0001] The invention relates to a folding bicycle, in particular to a four-link body folding box-type pushable portable bicycle that can be folded very small and fast, and the metal rods of the body can be hidden in the trunk after folding. technical background: [0002] The several models of portable bicycles that the applicant applied for earlier, although the folding is fast and the folding effect is good, they can be rolled out after being folded, and the metal poles of the body can be hidden in the trunk, so that the folded appearance is as beautiful as a box The neat portable bike hasn't existed yet. Invention content: [0003] The purpose of the present invention is to provide a four-linkage that can be folded very small and completely, can be folded quickly, and can be folded to hide the metal rods of the vehicle body in the trunk, and can be pushed after being folded. The folding box type of the body can promote the portable bicycle. The pur...

AI Technical Summary

Problems solved by technology

[0002] The applicant's previous application for several types of portable bicycles, although the folding is fast and the folding effect is good, but after folding, it can be rolled out and the metal pole of the body can be hidden In the carriage, there has never been a portable bicycle that looks as beautiful and tidy as a box after being folded.

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