Patent ID: 7044991

Claim:
A dust-collection structure of a dust-collection device having a cart body, a dust-collection module, a moving seat and a dust-filtering module, characterized in that the cart body is provided with a blower having a driving member and the top face of the blower is provided with a connection tube connecting to the dust-filtering module; the dust-collection module is a hollow cylindrical body positioned onto the cart and the cylindrical body is used to hold a dust-collection bag and the top edge of the cylindrical body is a connection body for mounting with the moving seat; the moving seat comprises two upward extended upright rods mounted at the cart body and the top end of a respective one of the upright rods is pivotally connected with a corresponding extended shaft and the connection body is locked between two extended shafts, and the circumferential edge of the connection body is provided with the connection tube to connect with a dust-suction tube and the bottom end and the top end of the connection body and the dust-collection module and the dust-filtering module are provided with fastening structure which can be engaged or disengaged; and the dust-filtering module has an external hood body having a dust-filtering means and the top edge of the external hood body is provided with the connection tube, and the connection tube can be mounted to a soft hose connected to the connection tube of the blower, thereby the structure can be engaged and disengaged the connection body and the dust-collection module and the connection body and the dust-filtering module are opened upward, the dust-collection bag for the dust-collection apparatus can be easily replaced.