Alarm device that main shaft coal prevention for repetitive clear of a signal loaded

The utility model discloses an alarm device that main shaft coal prevention for repetitive clear of a signal loaded, including body subassembly and transportation assembly, the body subassembly includes lifting machine, bracing piece, drive machine, pivot, driving chain, gear frame and gusset plate, the bracing piece is located the both ends front surface of lifting machine, and with lifting machine welded fastening, the bottom inboard of bracing piece is provided with the gear frame, the bracing piece with gear frame sliding connection, fixed being provided with in bottom surface of gear frame the gusset plate, the gusset plate includes the tablet, the appearance chamber has been seted up to the inside of gusset plate, implant one section warning procedure in the tablet, when the skip when the well head takes place not unload the clean condition to the coal, whether the judgement can be warned coal unloading trouble, shaft bottom signal worker is inforied immediately to the hoistman,the operation of no longe