Concrete slump testing device

The utility model discloses a concrete slump testing device which comprises a bottom plate, a measuring component is fixedly mounted on one side of the top of the bottom plate, two screw rods are rotatably arranged on the other side of the top of the bottom plate, the screw rods are sleeved with connecting plates through thread structures, a circular ring is fixedly connected to the opposite sides of the connecting plates, and the circular ring is fixedly connected with the top of the bottom plate. The slump cone is fixedly sleeved with the circular ring, a plurality of pressing blocks are fixedly installed on the edge of the bottom end of the slump cone, the tops of the pressing blocks abut against a pressing assembly in a sliding mode, and the pressing assembly is fixedly installed on the bottom plate. The slump cone can be synchronously driven to demould through the two rotationally arranged screws, so that the demoulding stability of the slump cone is ensured, the slump cone is prevented from rotating or