金融界2025年6月13日消息,国家知识产权局信息显示,京西重工(上海)有限公司取得一项名为“滚球坡道结构及电控制动器和车辆”的专利,授权公告号CN222977295U,申请日期为2024年09月。专利摘要显示,本实用新型公开了一种滚球坡道结构及电控制动器和车辆,滚球坡道结构包括:多个滚球;多个滚球坡道,滚球坡道包括两引导球槽,两引导球槽分别设置于两个球盘的相对面,两个球盘能在周向上相对旋转而使...
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