US 11,864,701 B2
Water tank assembly, pumping and drainage system, reversing valve, base station body, base station, and cleaning system
Xiaolong Lin, Shenzhen (CN); Churui Xu, Shenzhen (CN); Jin Chen, Shenzhen (CN); Weijie Zhu, Shenzhen (CN); and Zhenxu Wang, Shenzhen (CN)
Assigned to YUNJING INTELLIGENCE INNOVATION (SHENZHEN) CO., LTD., Shenzhen (CN); and YUNJING INTELLIGENCE (SHENZHEN) CO., LTD., Shenzhen (CN)
Filed by YUNJING INTELLIGENCE TECHNOLOGY (DONGGUAN) CO., LTD., Dongguan (CN); and YUNJING INTELLIGENCE (SHENZHEN) CO., LTD., Shenzhen (CN)
Filed on Nov. 29, 2022, as Appl. No. 18/070,477.
Application 18/070,477 is a continuation of application No. PCT/CN2022/092878, filed on May 13, 2022.
Claims priority of application No. 202110889012.4 (CN), filed on Aug. 3, 2021; application No. 202121799137.X (CN), filed on Aug. 3, 2021; application No. 202121799561.4 (CN), filed on Aug. 3, 2021; and application No. 202121799562.9 (CN), filed on Aug. 3, 2021.
Prior Publication US 2023/0086402 A1, Mar. 23, 2023
Int. Cl. A47L 11/40 (2006.01); B08B 3/02 (2006.01)
CPC A47L 11/4091 (2013.01) [B08B 3/02 (2013.01); A47L 2201/028 (2013.01); B08B 2203/027 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pumping and drainage system, wherein the pumping and drainage system comprises:
a first water tank, the first water tank is defined with a water storage cavity and a vent communicated with the water storage cavity;
a gas source system communicated with the vent;
in case the gas source system is in a first state, gas in the water storage cavity is discharged through the vent and the gas source system successively, causing the water storage cavity to be in a negative pressure state, allowing fluid to be sucked into the water storage cavity; in case the gas source system is in a second state, gas is delivered to the water storage cavity by the gas source system through the vent, causing the water storage cavity to be in a positive pressure state, allowing fluid in the water storage cavity to be discharged.