Belt-adjustable conveying mechanism of belt conveyor

The invention relates to the technical field of conveyors, in particular to a belt-adjustable conveying mechanism of a belt conveyor. According to the belt-adjustable conveying mechanism of the belt conveyor, the conveying length, height and angle can be adjusted. A belt-adjustable conveying mechanism of a belt conveyor comprises a telescopic frame, a belt, first transmission wheels and the like, the first transmission wheels are rotationally connected to the left side and the right side of the upper portion of the telescopic frame, and the belt is wound between the first transmission wheels. A first electric push rod drives a first transmission wheel on the right side to move left and right through a first ejector block, so that a telescopic frame extends or contracts to adjust the length, a third transmission wheel is driven by a sliding block to move downwards to pull a belt under the action of a first pressure spring, and after the overall length is adjusted, the belt is always in a tightened state and ca