Patent ID: 11872173
Assignee: SUZHOU ALTON ELECTRICAL & MECHANICAL INDUSTRY CO., LTD.
Field: Environmental technology (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 4:
5. The main unit of the nursing machine of claim 2, wherein in a case where the second water inlet is opened, the third water inlet is closed, and the water pump is configured to perform suction, the water in the second water tank is able to sequentially flow through the first water outlet, the first waterway, the second water inlet, the second water outlet, the third waterway, and the first water inlet, to flow back into the second water tank; and
in a case where the second water inlet is closed, the third water inlet is opened, and the water pump is configured to perform suction, the water in the first water tank is able to sequentially flow through the second waterway, the third water inlet, the second water outlet, the third waterway, and the first water inlet to flow into the second water tank.