Reciprocating drive mechanism for bicycle

Abstract

The invention relates to a bicycle back-and-forth driving mechanism, belonging to the technical field of bicycle design and manufacture, which is characterized in that: the bicycle back-and-forth driving mechanism comprises a drum and a shaft pole. The invention adopts the structure that a round thick plate with symmetrical holes are vertically closely fastened in the center of the shaft pole; shaft holes for holding a shaft are opened correspondingly on the circumference of the round thick plate; bevel planet gears are arranged on the shaft and respectively meshed with the conical gears of a duplicate center gear supported by a roll ball and a bearing on the shaft pole at both sides; the two sides of the round thick plate of the bevel planet gears are arranged on the shaft pole; the following components are arranged respectively and symmetrically from the center to the both sides: an unidirectional driving mechanism, a gear accelerating mechanism and a swinging limiting mechanism. The driving mechanism overcomes the disadvantage of revealed transmission parts; all transmission parts of the invention are placed in a closed body and do not defile the clothes of riders; regular cleaning and oil feeding are not needed, and maintenance work is saved; a transmission chain is saved, thus eliminating the situation of chains dropping; the use is safe and the structure is rather compact.

Description

technical field [0001] The invention relates to the technical field of bicycle design and manufacture, in particular to a design technology of a bicycle reciprocating drive mechanism. Background technique [0002] Existing bicycle is to transmit power and increase speed by chain. The disadvantage is that the transmission parts are exposed, and maintenance work such as regular cleaning and oiling is required. Sometimes the chain will fall off, and it is easy to stain the clothes of the rider. At the same time, the meshing part of the mechanism is exposed, which is not very safe to use. Nor is it compact. Contents of the invention [0003] The invention provides a transmission part that is not exposed, does not need maintenance work such as regular cleaning and oiling, and will not cause the chain to fall off, and will not stain the clothes of the rider. Also very safe, a kind of bicycle reciprocating drive mechanism that structure is also compact. [0004] The technical ...

AI Technical Summary

Problems solved by technology

The disadvantage is that the transmission parts are exposed, and maintenance work such as regular cleaning and oiling is required. Sometimes the chain will fall off, and it is easy to stain the clothes of the rider. At the same time, the meshing part of the mechanism is exposed, which is not very safe to use. not compact

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