Follow-up protection disc for vertical shaft excavation

The follow-up protection disc comprises a protection disc body and a lifting driving mechanism, the lifting driving mechanism is installed on the ground outside a vertical shaft, and the protection disc body is connected with the lifting driving mechanism and is driven by the lifting driving mechanism to synchronously descend along with the excavation depth of the vertical shaft. Hoisting holes used for conveying materials are formed in the protection disc body, and a ladder cage mechanism capable of being spliced to extend and moving downwards along with the protection disc body is arranged on the protection disc body. The method has the advantages of guaranteeing construction safety, being convenient to construct and improving construction efficiency. 本发明公开了一种用于竖井开挖的随动式防护盘，包括防护盘本体和升降驱动机构，升降驱动机构安装在竖井外的地面上，防护盘本体与升降驱动机构连接并在升降驱动机构的驱动下随竖井的开挖深度同步下降，防护盘本体上开设有用于材料输送的吊装孔，防护盘本体上设置有可拼接延长随防护盘本体向下移动的梯笼机构。具有保证施工安全、施工方便、提高施工效率的优点。