Steam curing device for detecting strength of building test block

The invention discloses a steam curing device for detecting the strength of a building test block, and relates to the technical field of concrete building test block curing, the steam curing device comprises a bottom box, a top box movably arranged at the upper part of the bottom box and a steam device arranged at the top of the top box, the upper part of the outer wall of the bottom box is sleeved with an annular pipe, and a diversion cavity is formed in the side wall of the bottom box; a water pumping assembly is arranged between the conveying cavity and the flow dividing cavity. The fixed cylinder and the inserting pipe are provided with a communicating mechanism; an adjusting mechanism is arranged in the lower part of the cylindrical box; through cooperation of the bottom box, the top box and the water pumping assembly, the sealing performance of the building test block during steam curing is improved conveniently, heat loss is greatly reduced, and energy consumption is reduced; meanwhile, the water body