Brick carvings (stone carvings) embedded in the two corners of the door in ancient buildings in China? What is the proper noun of)?

The upper shaft and the lower shaft of the door need to be fixed on the door frame, but the parts that bear the lower shaft bear the weight of the door leaf in addition to fixing the door shaft. So they are all made of stone. According to their position and function, they are named "door pillows". The door pillow stone is a square stone, which is placed horizontally below the upright post of the door frame. There is a bucket in the door frame, and there is a small circular groove above it, in which the lower shaft of the door is embossed. Another bucket of door pillow stone is exposed outside the door frame. There is a groove flush with the door frame in the middle of the pillow stone, which is used to insert the threshold. Outside the doorpillows of palaces, temples and palaces, stones are used to reduce lions. Lions must be very small at people's doorways. Sometimes they can only carve a small lion's head on the round drum-holding stone, while the ordinary door pillow is just for drum-holding stone or some simple carving decoration.