Improved bicycle chain structure

Abstract

The invention relates to an improved bicycle chain structure. The improved bicycle chain structure comprises a first chain piece, a second chain piece and a chain pin, wherein the first chain piece is provided with a first hole, a second hole and a mounting hole communicated with the second hole; at least one convex part is arranged on the surface of the first chain piece facing toward the secondchain piece; the second chain piece is provided with a first hole and a second hole; at least one concave part is arranged on the surface of the second chain piece facing toward the first chain piece; one end of the chain pin is assembled together with the first hole of the first chain piece, while the other end is a head part having a groove; the outer diameter of the head part is not larger than the mounting hole of the first chain piece and is larger than the second hole of the first chain piece; and the outer diameter of the groove is not larger than the second hole of the first chain piece. During assembly, the chain pin passes through the first hole of the second chain piece and then passes through the mounting hole of another first chain piece; and the groove is buckled on the second hole of the first chain piece. In the normal status, the convex part presses against the non-concave area of the second chain piece. The improved bicycle chain structure increases the overall structural strength and the service life.

Description

Improved bicycle chain structure Technical field The invention relates to a bicycle chain, in particular to a detachable and improved bicycle chain structure. Background technique For the existing bicycle chain structure, please refer to US Patent No. 5362282 "MasterChainLink", a reusable main chain structure patent, which mainly includes first and second parallel chain pins, the first and second chain pins are extensions Between the first and second parallel links, the first link pin includes first and second heads at opposite ends thereof, the second link pin includes first and second heads at opposite ends thereof, the first The first and second link pieces are respectively formed with first and second holes. The first and second holes have rounded portions that are smaller than the first heads of the first and second link pins. The round parts have counterbores respectively for receiving and burying the first heads of the first and second chain pins, and the first heads a...

AI Technical Summary

Problems solved by technology

The existing structure connects the larger circular hole and the smaller circular hole through the elongated slotted hole, but the first head can still move in it, so it is impossible to ensure that the chain is completely kept in the smaller circular hole. Therefore, if the first head slides on the larger round hole due to external force or other factors during riding, the chain will be completely disassembled and fall off, which may lead to a rollover in severe cases

Furthermore, the chains are formed with larger and smaller round holes and elongated slots. The overall structure has a large excavation area, which affects the structural strength, leads to deformation of the chains or increases the possibility of loss, and reduces the service life.

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