The "doorman" originally refers to a pair of stone drums in front of the gate of the mansion, also known as the drum-holding stone. Because its drums are magnificent and thunderous, people think it can ward off evil spirits, so people widely use stone drums as "doorbells".
Usually, lion-shaped doors are used as stones in front of ancestral halls or yamen; Senior military attaché s use the drum-shaped lion gate as the stone, while junior military attaché s use the drum-shaped gate of the animal head as the stone; Box lions are stones in front of senior civil servants, and box carved doors are stones in front of junior civil servants; In front of the richest man, there is a box-shaped unpretentious drum stone; Ordinary rich people use Shimen as a stone; For ordinary houses, wooden square piers or door pillows can only be used instead.