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

Claim 18:
19. The main unit of the nursing machine of claim 18, further comprising an air guide tube and an air pressure detection unit for detecting air pressure in an inner cavity of a base,
wherein the water blocking device further comprises the base, an upper cover disposed on an upper end of the base, a vent communicating with the inner cavity of the base; wherein the base comprises a water storage cup and a float accommodation cup, an inner cavity of the water storage cup forms the water storage cavity, an inner cavity of the float accommodation cup forms the float accommodation cavity, one end of two opposite ends of the air guide tube is connected to the vent, and another end of the two opposite ends of the air guide tube is connected to the air pressure detection unit; and
wherein the upper cover further comprises a bottom plate and a baffle, the baffle extends downward into the base, the baffle extends downward beyond the air inlet port and the air outlet port, the baffle is located between the air inlet port and the air outlet port, and the baffle shields one side of the air inlet port relatively close to the air outlet port; the air inlet port, the air outlet port, and the vent respectively penetrate through the bottom plate, the baffle is located between the vent and the air outlet port, and the vent is located between the air inlet port and the baffle.