Cover plate lifting device

The utility model relates to a cover plate lifting device which comprises a movable frame, a rail arranged at the bottom of the movable frame, a fixed rod arranged on one side of the bottom of the movable frame, two side fixed pulley sets arranged on one side of the bottom of the movable frame, a top fixed pulley set arranged on the top of the movable frame, and a pull rope wound on the two top pulley sets. The other end of the pull rope is sequentially wound on the side fixed pulley block and the top fixed pulley block and then connected to the lifting hook, and a jacking mechanism for driving the pull rope to move is arranged on the movable frame. The cover plate lifting device is simple and stable in structure, capable of quickly lifting the cover plate, convenient to use, time-saving, labor-saving and capable of improving construction safety. 本实用新型涉及一种盖板提升装置，包括移动架，移动架底部设轨道，移动架底部一侧设有固定杆和两组侧定滑轮组，移动架顶部设有顶部定滑轮组，两组顶部滑轮组上缠绕拉绳，拉绳一端固定在固定杆上，拉绳另一端依次绕在侧定滑轮组、顶部定滑轮组上后接于吊钩，移动架上设有带动拉绳运动的顶升机构。本实用新型结构简单稳定，可快速提升盖板，使用方便，省时省