CN101284486B - 三轮车的防侧翻结构 - Google Patents

三轮车的防侧翻结构 Download PDF

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CN101284486B
CN101284486B CN200810026720XA CN200810026720A CN101284486B CN 101284486 B CN101284486 B CN 101284486B CN 200810026720X A CN200810026720X A CN 200810026720XA CN 200810026720 A CN200810026720 A CN 200810026720A CN 101284486 B CN101284486 B CN 101284486B
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pressure cylinder
pressure
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cylinder
prevention structure
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CN101284486A (zh
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韩德玮
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Han Dewei
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Abstract

本发明公开了一种三轮车的防侧翻结构,包括车架,其特征在于,车架后部铰接两个用于安装后轮的后叉,各后叉上安装一个压力缸与车架的承杆相连,两个压力缸的上腔有管路相连。车体转弯时,为抵消离心力的作用,人体和三轮车均向内侧倾斜,通过连通的压力缸的压力传递,内侧压力缸压缩,外侧则等量拉伸,可增加外侧车轮的触地压力,使两后轮的触地压力相等,因而转弯时的行进更平稳。

Description

三轮车的防侧翻结构
技术领域:
本发明涉及三轮车,特别是一种防止三轮车侧翻的结构。
背景技术:
通常,人力三轮车或电动三轮车的两个后轮是同轴的,通过一个轮轴驱动。三轮车转弯时,因车体重力产生较大的离心力,致使转弯外侧的后轮触地压力增大,内侧后轮触地压力减少,使车体产生侧倾趋势,骑行者须向内侧倾斜身体,以抵抗车体的离心力,骑行者感觉不舒适。对于行进较快的电动三轮车,尤其是重载急转弯时,人体的重心内侧倾斜也难以克服车体的离心力,可能使车身翻倾,引起交通意外。另外,三轮车行进在崎岖颠簸路面时,两个后轮经常受力不均,致使车体扭摆,振动,骑行者亦很不舒适。
发明内容:
本发明旨在给出一种使三轮车骑行更平稳且拐弯时可抵抗侧翻趋势的三轮车防侧翻结构,其成本低,制造方便,骑行更平稳,操作更灵活。
本发明所述的三轮车防侧翻结构,包括车架,车架后部铰接两个用于安装后轮的后叉,各后叉上安装一个压力缸与车架的承杆相连,两个压力缸的上腔有管路相连。
本发明所述的三轮车防侧翻结构,由于在车架后部分别铰接两个后叉,则两个后叉以及装在后叉上的后轮可分别相对车架绕铰轴上下转动,可适应地面不平。两个后叉通过压力缸与车架的承杆相连,且两个压力缸的上腔相通。车体转弯时,为抵消离心力的作用,人体***衡,避免了因离心力过大而导致的车体侧翻,缓解了离心力对车体带来的侧翻趋势,使骑行更舒适且安全性得以提高。另外,转弯时,内、外侧后轮的触地压力相等不易打滑,可使三轮车转弯时的行进更平稳。因两后轮可分别绕铰轴转动,所以当行驶在高低不平的路面时,由于压力缸的联动作用,保证了骑行更平稳、安全。
附图说明:
图1所述三轮车的立体结构图;
图2本发明的一种压力缸的连接关系图;
图3本发明的一种压力缸的连接关系图;
图4本发明的一种压力缸的连接关系图;
图5是三轮车后叉与车架连接的示意图;
图6是三轮车侧倾时的示意图。
具体实施方式:
如图1,三轮车架1后部铰接两个用于安装车轮2的后叉3。后叉的铰接可如图5所示,车架的主梁4上固定两个轴套5,后叉的主杆31与两个叉杆32垂直,***轴套中可转动。后叉的一个叉杆32上装有压力缸7,压力缸的另一端与车架的承杆8相连接,两侧的压力缸上腔由连通管11相连。本实施例给出的压力缸为一种液气混合压力缸,如图2,其缸筒内有两个活塞,下活塞9上装活塞杆10。活塞杆10中空,可向两活塞之间注入压缩空气,两活塞之间为气腔,两活塞的外侧为液压腔。压力缸内注有压缩空气,可在颠簸路面上使两轮均着地,行使更平稳,起避震作用。压力缸,也可如图3,其仅为液压缸,液压缸的活塞杆10下端通过弹性件与后叉连接,弹性件可以是压缩的弹簧、弹簧套16或气压缸,在路面颠簸时能起避震作用。三轮车拐弯时,为抵消离心力的作用,人体和三轮车均向内侧倾斜,如图6,其内侧后轮受力加大,相对车架上摆,内侧后轮受力经连通的压力缸传递至外侧后轮,使外侧后轮相对车架下摆,从而通过人体重心调整,使车架自身侧倾,达到受力平衡,避免了因离心力过大而导致的车体侧翻。
两个压力缸7的连通管11上可安装节流阀12,如图2。当节流阀12关闭时,车体可像普通三轮车一样,两后轮不产生倾斜。
两后轮的后叉3与承杆8间可安装与压力缸并联的拉簧17,如图6,通过拉簧17的拉力作用,三轮车在拐弯完成,除去侧向外力后,可迅速复位,从而使车身能快速恢复水平站立。
使三轮车去除侧向负荷后,能够快速恢复水平站立,也可如图2、图3,在各压力缸的下腔,可分别连接储能缸13,储能缸活塞14下部为液压腔,活塞是上部可装弹簧15或注入高压空气,这样压力缸便产生一定向上的推动,左、右压力缸压力相等时三轮车在除去侧向外力后便能自动水平站立。两压力缸的下腔可连接同一个储能缸,如图4,其实现上述功能的同时,结构更简单,更节省成本。
本发明三轮车可采用双轮毂电机驱动。

Claims (4)

1.三轮车防侧翻结构,包括车架,车架后部铰接两个用于安装后轮的后叉(3),各后叉上安装一个压力缸(7)与车架的承杆(8)相连,两个压力缸的上腔有管路(11)相连,其特征在于:所述各压力缸(7)的下腔连接储能缸(13),储能缸的活塞(14)下部为液压腔,活塞上部可装弹簧(15)或注入高压空气。
2.根据权利要求1所述的三轮车防侧翻结构,其特征在于:两个压力缸(7)的连通管路(11)上装有节流阀(12)。
3.根据权利要求1所述的三轮车防侧翻结构,其特征在于:两后叉(3)与承杆(8)间均安装有与压力缸并联的拉簧。
4.根据权利要求1所述的三轮车防侧翻结构,其特征在于:所述两个压力缸下腔连接着同一个储能缸。
CN200810026720XA 2008-03-10 2008-03-10 三轮车的防侧翻结构 Expired - Fee Related CN101284486B (zh)

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TWI410339B (zh) * 2010-01-22 2013-10-01 Univ Nat Taiwan Science Tech 防翻覆三輪機動車
CN101927676B (zh) * 2010-08-05 2012-04-04 金陵科技学院 自动平衡式四轮车底盘
CN107344589A (zh) * 2016-06-24 2017-11-14 嵊州市中工电气有限公司 三轮车
CN106585766A (zh) * 2016-10-25 2017-04-26 叶呈艳 一种电动助力车的防侧翻车身***
JP7128432B2 (ja) * 2017-03-31 2022-08-31 株式会社アイシン 車両
CN112693551B (zh) * 2020-12-31 2022-05-31 台州市佑吉车业科技股份有限公司 电动三轮车

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CN201205857Y (zh) * 2008-03-11 2009-03-11 韩德玮 三轮车的防侧翻结构

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