US 12,270,223 B2
Underwater debris suction apparatus
Qian Yu, Tianjin (CN); Pu Cen, Tianjin (CN); Cuixiao Geng, Tianjin (CN); and Liangliang Xu, Tianjin (CN)
Assigned to WYBOTICS Co., LTD., Tianjin (CN)
Appl. No. 17/606,068
Filed by WYBOTICS Co., LTD., Tianjin (CN)
PCT Filed Jun. 26, 2020, PCT No. PCT/CN2020/098328
§ 371(c)(1), (2) Date Oct. 25, 2021,
PCT Pub. No. WO2020/228843, PCT Pub. Date Nov. 19, 2020.
Claims priority of application No. 201910391321.1 (CN), filed on May 12, 2019.
Prior Publication US 2022/0195745 A1, Jun. 23, 2022
Int. Cl. E04H 4/16 (2006.01); B01D 35/02 (2006.01); B01D 35/30 (2006.01); C02F 1/00 (2023.01); C02F 103/42 (2006.01)
CPC E04H 4/1636 (2013.01) [B01D 35/02 (2013.01); B01D 35/30 (2013.01); C02F 1/001 (2013.01); B01D 2201/204 (2013.01); C02F 2103/42 (2013.01); C02F 2301/063 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An underwater debris suction apparatus, comprising
a power device, a filter device, and
a collection device; wherein
the power device comprises a suction component and a power drive device configured to provide power for the suction component;
an upper end of the collection device is provided with a first opening;
the suction component is at least partially located above the filter device or the suction component is entirely located in a space of the filter device;
the suction component is configured as a semi-open centrifugal impeller, wherein after flowing from an upper end of a water inlet pipe, unfiltered pool water is agitated by the semi-open centrifugal impeller and flows outward under action of a centrifugal force generated by rotation of the semi-open centrifugal impeller:
during operation of the suction component, unfiltered pool water enters the filter device through a water inlet channel and flows to a side wall of the filter device, filtered water is discharged from the side wall of the filter device, and debris failing to be discharged from the side wall of the filter device falls into the collection device;
the lower end of the filter device is provided with an opening; and
a side wall of the filter housing is provided with water passing holes.