在矿山平巷内敷设的窄轨铁路线路上,道岔是重要的装置。为确保轨道的质量,提高运输能力,取得更大的经济效益,现有窄轨道岔的研究和设计,应引起重视。单开道岔占各类道岔总数的95％以上,是由转辙器、辙岔及两者之间的连接部分组成。本文就上述两部件设计的改进,加以说明。 Turnout is an important device on the narrow-gauge railway laid in mine lanes. In order to ensure the quality of orbit, improve the transportation capacity and achieve greater economic benefits, the research and design of existing narrow-track turnout should be taken seriously. A single turnout takes more than 95% of the total number of turnouts, consisting of the switch, the switch and the connection between the two. This article on the improvement of the two parts design, to illustrate.