| 摘要 |
The invention relates to a device for draining of oil residues from oil drums (1). The device has a stand (3) with an inclined cradle (13) with a knife (23) mounted on its lower front edge. On the insides of the front legs there are hooks (15, 16) attached catching and gripping behind the border (2) on an oil drum (1) placed into the cradle. When the oil drum is tilted backward, the lower gable rotates around an axis (A) so that the border (2) is pressed against a point (25) on the knife (23) by a force that is magnified through the relationship between the moment lever between the axis (A) and the border and the moment lever between the axis (A) and the centre of gravity or an externally applied force. The point of the knife cuts through the inner edge of the border and penetrates the gable plate in the inner plane of the drum and gives the oil residues free way out of the drum down into a collecting tray (11). |
