Patent ID: 11864701
Assignee: YUNJING INTELLIGENCE (SHENZHEN) CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC A  B  Y | IPC A  B

Claim 8:
9. The base station as claimed in claim 7, wherein the gas source system comprises a gas pump and a reversing valve communicated with the gas pump and the vent of the first water tank, the reversing valve is arranged in the first water tank, and the gas pump is arranged on the base station body;
the base station body is provided with at least two interfaces, one interface forms a positive pressure interface and the other interface forms a negative pressure interface;
in case the first water tank is installed on the base station body, the positive pressure interface is communicated with the reversing valve and a gas outlet of the gas pump, and the negative pressure interface is communicated with the reversing valve and a gas inlet of the gas pump;
the reversing valve is configured to switch to communicate with the positive pressure interface or to communicate with the negative pressure interface; in case the reversing valve is communicated with the negative pressure interface, gas in the water storage cavity is allowed to flow into the gas pump through the negative pressure interface and the gas inlet of the gas pump to cause the water storage cavity to be in the negative pressure state; and in case the reversing valve is communicated with the positive pressure interface, gas is allowed to flow into the positive pressure interface from the gas outlet of the gas pump to cause the water storage cavity to be in the positive pressure state.