Lump coal breakage-proof telescopic chute

The utility model discloses an anti-breaking telescopic chute for lump coal. The conveying device comprises a stock bin, a first sleeve, a second sleeve, a funnel-shaped material pipe, a conveying assembly, a stop block, a travel switch, a control box, a hydraulic station, a hydraulic rod, a material level meter, an annular sliding groove a, an annular clamping block a, an annular clamping block b, an annular sliding groove b and an annular sleeve. The device is characterized in that a funnel-shaped material pipe is vertically arranged over the stock bin, a first sleeve is connected to the outer side of the funnel-shaped material pipe in a sleeving mode, a second sleeve is connected to the outer side of the first sleeve in a sleeving mode, the bottom of the second sleeve is located in a cavity of the stock bin, and the conveying assembly is arranged above the funnel-shaped material pipe. According to the utility model, lump coal slowly falls in the chute and then naturally accumulatesin the stock bin, so that