Protective device for coal mining tunneling

The utility model discloses a protective device for coal mining tunneling, and relates to the technical field of coal mines. Comprising a base, a lifting device is arranged at one end of the base, the lifting device is in transmission connection with a branch plate, a buffer device is arranged between the branch plate and a coal mine, the lifting device comprises a guide column, a guide sleeve, clamping teeth and a gear, the fixedly-connected guide column is arranged at one end of the base, and a plurality of fixedly-connected clamping blocks are arranged on the surface of the guide column. The clamping blocks are arranged in second sliding grooves in the guide sleeves in a sliding mode, a plurality of clamping teeth which are fixedly connected are arranged on the surfaces of one sides of the guide sleeves, the clamping teeth are meshed with the gears, and the guide sleeves are connected through a cross beam. 本实用新型公开了一种采煤掘进用防护装置，涉及煤矿技术领域；包括底座，所述底座的一端设有升降装置，所述生将装置与分支板传动连接，所述分支板与煤矿之间设有缓冲装置，所述升降装置包括导柱、导套、卡齿和齿轮，所