Automatic switching device of garage door

The utility model provides an automatic switching device of garage door, includes the garage door, motor, reduction gears, the connecting rod of being connected with the garage door, the motor passes through the reduction gears and connects the cross axle, a bevel gear is installed respectively at the cross axle both ends, a bevel gear and the meshing of the 2nd bevel gear, the 2nd bevel gear installs in axis of ordinates top, the articulated first connecting rod one end in axis of ordinates bottom, the first connecting rod other end articulates second connecting rod one end, the second connecting rod is connected the garage door. The utility model discloses an in -opening door design, simple structure, occupation space is little, is fit for the limited or underground garage of exterior space, the utility model discloses an adopt the belt pulley, the chain opinion, bevel gear, the tertiary speed reduction has saved the speed reducer, has reduced manufacturing cost, and wherein, the belt pulley hangs down apar