Keel ceiling device for clean engineering

The utility model discloses a keel suspended ceiling device for cleaning engineering, and relates to the technical field of keel suspended ceilings. The connecting piece comprises a connecting piece body, fixing blocks are fixedly connected to the periphery of the connecting piece body, limiting plates are fixedly connected to the sides, away from the connecting piece body, of the fixing blocks, keels are slidably connected to the outer side walls of the limiting plates, fixing plates are fixedly connected to the inner walls of the keels, and threaded sleeves are fixedly connected to the middles of the fixing plates. In the process that the cleaning plate is placed on the supporting plate, the clamping plate in the fixing frame can abut against the clamping block to enable the clamping block to move, the spring is compressed, when the cleaning plate moves to the supporting plate, the clamping plate can be disengaged, the spring resets to drive the clamping block to move, and therefore the clamping plate is fi