Protective device for thin film discharging trolley

The utility model relates to the technical field of trolleys, and provides a protective device for a film blanking trolley, which comprises a trolley main body and a protective plate. When the rear end of the trolley body is collided, a protection plate pushes a mounting plate to move into a mounting groove, a pressing rod pushes a pressing plate to extrude a second spring into a movable groove and stretch a first spring and a plurality of rubber strips, and vibration force generated when the protection plate is collided is rapidly eliminated; when the mounting plate moves towards the interior of the mounting groove, the first rack is meshed with the gear to drive the rotating shaft to rotate, the gear is meshed with the second rack to drive the top plate to move outwards to abut against the protection plate, and then the speed that the protection plate stably returns to the original position is increased. The vibration energy is absorbed and stored by the spring in the compression stroke, and the energy cann