Concrete slump automatic detection device

The utility model relates to the technical field of concrete detection, in particular to a concrete slump automatic detection device which comprises a rack and a detection mechanism, supporting columns are fixedly connected to the two sides of the bottom of the rack, a mounting plate is movably arranged on the top of the inner side of the rack, a conical barrel is arranged below the mounting plate, and a first electric push rod is fixedly connected between the mounting plate and the conical barrel. The detection mechanism comprises a supporting plate, a first motor, a second electric push rod, a measuring rod, an infrared emitter and an infrared receiver, the supporting plate is welded to the inner side wall of the rack, the first motor is fixedly installed at the top of the supporting plate, penetrates through the bottom of the supporting plate and is fixedly connected with the second electric push rod, and the output end of the second electric push rod is fixedly connected with the measuring rod. The concre