The utility model discloses a labor-saving bicycle with two speed, including a front wheel and a rear wheel and pedal arranged on both sides of the vehicle body; the front sprocket drive shaft and the cylinder is fixed coaxially, the front sprocket chain and sprocket connected by car; a gear box is arranged between the rear sprocket and the rear wheels and rear sprocket and the input shaft of the gear box is fixed coaxially, the rear wheel and the output shaft of the gear box is fixed coaxially. Compared with the traditional bicycle of the utility model, set up a gearbox between the rear sprocket and a rear wheel, the rear sprocket and the input shaft of the gear box is fixed coaxially, the gearbox output shaft coaxial with the rear wheel is fixed, forming a front wheel and rear sprocket composed of a transmission, and a variable speed gear box is connected with. The formation of the two speed, compared with the ordinary one variable speed bicycle more labor-saving, the speed at the same time, reduce the volume weight, flexible movement and convenient for users to carry.
【技术实现步骤摘要】
【专利摘要】本技术公开了一种采用二级变速的省力脚踏车,包括前车轮、后车轮以及设置在车体两侧的脚踏板;前链轮与传动轴筒同轴固定,前链轮通过车链与后链轮相连;后链轮与后车轮之间设置有变速箱,且后链轮与变速箱输入轴同轴固定,后车轮与变速箱输出轴同轴固定。本技术与传统脚踏车相比,在后链轮与后车轮之间设置变速箱,使后链轮与变速箱输入轴同轴固定,变速箱输出轴与后车轮同轴固定,形成了前链轮与后链轮组成的一级变速,同时将一级变速与变速箱相连,形成了二级变速,相对于普通一级变速的脚踏车更加省力,在保证车速的同时,缩小体积减轻质量,运动灵活且方便使用者携带。【专利说明】一种采用二级变速的省力脚踏车
本技术涉及一种采用二级变速的省力脚踏车。技术背景目前,脚踏车是靠人脚力驱动前链轮带动后链轮,从而使脚踏车轮转动,且现有的脚踏车多为一级变速的脚踏车,对于没有复杂的多级变速装置的脚踏车来说,在遇到爬坡等复杂路面情况时非常费力。
技术实现思路
本技术的目的在于克服现有脚踏车的体积大不便携带的问题,提供一种采用二级变速的省力脚踏车,该脚踏车采用二级变速的结构,靠人体重力即可驱动脚踏车前行,而且体 ...
【技术保护点】
一种采用二级变速的省力脚踏车,其特征在于:包括前车轮(12)、后车轮(11)以及设置在车体两侧的脚踏板(10);前车轮(12)和后车轮(11)之间设置有支撑架(9),支撑架(9)上固联有支撑轴(1),支撑轴(1)上套设有传动轴筒(2),车体两侧的两个脚踏板(10)通过传动臂(3)固联在传动轴筒(2)的两端;传动臂(3)与脚踏板(10)相铰接;前链轮(5)与传动轴筒(2)同轴固定,前链轮(5)通过车链与后链轮(6)相连;后链轮(6)与后车轮(11)之间设置有变速箱(7),且后链轮(6)与变速箱输入轴(13)同轴固定,后车轮(11)与变速箱输出轴(14)同轴固定。
【技术特征摘要】
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