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立井为了防止提升全连过卷事故，在井上、井下电控装置上设计并安装了安全保护设施，并进一步在机械方面也采取了保护措施（如楔形罐道和防撞梁，是多绳摩擦提升机必要的安全设施）。设计得当的楔形罐道加防撞梁，可有效地起到安全保护作用。这里以孙村煤矿副立井井塔防撞梁为
In order to prevent the hoisting of the whole continuous overvoltage accident, the shaft is designed and installed with safeguards on the wellhead and downhole electric control devices and further mechanical measures (such as wedge-shaped cannels and bumper beams, multi-rope friction Hoist necessary safety equipment). Well-designed wedge-shaped tank plus collision beam, which can effectively play a safety role. Here to Suncun mine shaft vertical shaft anti-collision beam