CN CN224511379U
[0001] 本实用新型公开了一种适用于折叠自行车的变速张紧一体化后拨，包括：夹臂A，夹臂A上固定连接有导向轴杆，导向轴杆的一端固定连接有夹臂B，导向轴杆的中部转动连接有导向链轮；固定在夹臂A和夹臂B一端之间的张紧轴杆，张紧轴杆的外侧铰接有链条绷紧组件，用于配合导向链轮调整自行车链条的张紧度，本实用新型涉及自行车构件技术领域；本实用新型通过整体的结构配合，能够在自行车变速过程中，将导向链轮和张紧链轮持续保持在同一平面，使得整体的变速更加精准，且响应更加迅速，并在自行车折叠过程中，通过扭转弹簧的形变，可使链条保持绷直，避免链条脱落。
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