Novel prism integrated blackboard

The utility model discloses a novel prism integrated blackboard, which comprises a triangular prism, crankshafts, crankshaft connecting rods, a bevel gear, a coupling with a one-way bearing, a blackboard eraser rack, a blackboard eraser block, a positioning plate, a guide rail sliding block and a guide rail; the number of the crankshaft connecting rods is four; two left crankshaft connecting rods are connected with six crankshafts at the left half end of the blackboard in a penetrating manner; two right crankshaft connecting rods are connected with six crankshafts at the right half end of the blackboard in a penetrating manner. According to the novel prism integrated blackboard disclosed by the utility model, the whole body is broken into parts, that is, the original large-size blackboard surface is broken into twelve strip blackboards, so that the convenience for processing and mounting is realized; the conservation rule of using small area to achieve multiple purposes is realized and the blackboard is enabl