It has appeared in Japanese movies and TV series: there is a bamboo beside the well to catch the dripping water, and then it flows out after it is full of water, and the other end goes back to pick up

It has appeared in Japanese movies and TV series: there is a bamboo beside the well to catch the dripping water, and then it flows out after it is full of water, and the other end goes back to pick up the water? What is this? That kind of thing is called "Lu Jing", which refers to a decorative sketch often used in Japanese gardens and courtyards. It is made of bamboo and wood, and its function is to hold water. It moves through the lever principle, and is mainly used to show the hidden Zen in the Japanese garden system. It often appears with the "Jiuqu Bridge" in Japan and becomes an elegant scenery.