Pulley block demonstration experiment device

The utility model relates to a pulley block demonstration experiment device which comprises an experiment table, a bearing stand column, a guide cross beam, a guide arm, a fixed pulley, a movable pulley, a horizontal scale, a vertical scale, a horizontal guide rail and a vertical guide rail, the upper end face of the experiment table is hinged to the lower end face of the bearing stand column, and the vertical guide rail and the vertical scale which are parallel to the bearing stand column are arranged on the side surface of the bearing stand column. A horizontal guide rail is arranged on the outer surface of the guide beam and is in sliding connection with a fixed pulley and a plurality of guide arms, the guide arms are connected with movable pulleys, and a horizontal ruler is connected with the outer side face of the guide beam. According to the utility model, effective integration and high modularization degree can be realized, the test display direction and mode can be flexibly adjusted according to the r