US 12,274,406 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 INNOVATION (SHENZHEN) CO., LTD., Shenzhen (CN); and YUNJING INTELLIGENCE (SHENZHEN) CO., LTD., Shenzhen (CN)
Filed on Feb. 29, 2024, as Appl. No. 18/590,977.
Application 18/590,977 is a continuation of application No. 18/098,705, filed on Jan. 19, 2023, granted, now 11,957,287.
Application 18/098,705 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 2024/0197137 A1, Jun. 20, 2024
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)] 15 Claims
OG exemplary drawing
 
1. A water tank assembly, configured to be installed on a base station, wherein the water tank assembly comprises:
a tank body defined with a sewage cavity, the tank body being provided with a water inlet channel and a sewage discharging channel both communicating with the sewage cavity;
the sewage cavity being configured to receive sewage coming through the water inlet channel under a negative pressure inside the sewage cavity introduced by an external air source, and being configured to discharge the sewage through the sewage discharging channel under a positive pressure inside the sewage cavity introduced by the external air source; and
a one-way valve arranged in the water inlet channel, in case the sewage cavity is in a positive pressure state, the one-way valve being in a closed state, and in case the sewage cavity is in a negative pressure state, the one-way valve being in an open state.