What are the names of two drum-like boulders standing on both sides of the threshold of an ancient big house?

Take the drum stone. Drum-hugging stone is a kind of door pillow stone, which is two round artificial carved stone components at the bottom of traditional houses of Han nationality, especially the gate of quadrangles. It is named because it is supported on a stone pedestal in a drum shape.

Drum-hugging stone is a functional product of residential door components. It is a stone component decorated by function, which plays the role of enclosing the door and supporting the facade. In China, there are generally two external doors and one internal door, because the Chinese character door is composed of two households, and the two doors determine that the drum-holding stone must be symmetrical. Drum-hugging stone is a symbol of the hierarchy of ritual architecture, and it is also a symbol of the family status of being neither expensive nor rich. The drum-hugging stone will never exist independently from the political and economic foundation behind its owner. Holding a drum stone is not a suitable match, but it can be used as a reference for marriage identity matching. Drum-holding stone is a materialized ritual cultural symbol, and it is a typical example that the inner world is displayed to the outside world through decorative symbolic language.