Elevator car door lock device

The utility model relates to the technical field of elevator car doors, in particular to an elevator car door lock device which comprises a car door, a locking mechanism is arranged below the car door, a clamping mechanism is arranged on the car door, the locking mechanism comprises a U-shaped frame, the U-shaped frame is fixedly installed on the lower surface of the car door, and the clamping mechanism is arranged on the U-shaped frame. An inclined plate is movably mounted in the U-shaped frame, an arc-shaped clamping groove is formed in the lower surface of the compartment door, the inclined plate is movably clamped in the arc-shaped clamping groove, a circular sleeve is fixedly mounted at the end of the inclined plate, a rotating shaft is movably mounted in the circular sleeve, a rectangular extrusion plate is fixedly mounted on the U-shaped frame, and a rotating shaft is movably mounted in the rotating shaft. According to the utility model, the inclined plate moves up and down and the compartment door mov