Top cover device and working machine

The utility model relates to the technical field of operation machinery, and provides a top cover device and operation machinery, the top cover device is characterized in that a top cover is connected with a vehicle body of the operation machinery through a first connecting rod and a second connecting rod to form a four-connecting-rod mechanism, and the top cover can open and close a container opening of a container; the reciprocating driving device is connected with the first connecting rod or the second connecting rod and drives the first connecting rod or the second connecting rod to rotate; the pair of position detection devices are connected with the vehicle body, and the pair of position detection devices are arranged on the swing track of any one of the first connecting rod and the second connecting rod and are close to the two swing limit positions respectively; and the control device is connected with the reciprocating driving device and the position detection device. Through the pair of position det