Simple and easy cat ladder mechanism

The utility model discloses a simple and easy cat ladder mechanism, including the box, be equipped with the direct current motor, shaft coupling an and the main shaft that connect gradually in the box, there is gear a through the key -type connection on the main shaft, the meshing of gear a has gear b, and gear b is connected with bevel gear, and bevel gear is connected with turbine worm case through shaft coupling b, and turbine worm case is connected with the driving shaft, and the driving shaft is connected with the driven shaft that has synchronous pulley through the hold -in range, the both ends of driving shaft are connected with driving crank respectively, the both ends of driven shaft are connected with driven crank respectively, the articulated ground stock that props of driving crank props the upper end of ground stock and is connected with driven crank is articulated, and the lower extreme that props the ground stock is equipped with and props the lower margin. The utility model discloses can conve