	US 12,269,050 B2
	Water spraying pipe and cleaning apparatus
Weijun Xue, Foshan (CN); Tongsheng Wang, Foshan (CN); Wei Zhang, Foshan (CN); and Hui Zhang, Foshan (CN)
Assigned to FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING CO., LTD, Foshan (CN); and MIDEA GROUP CO., LTD., Foshan (CN)
Appl. No. 17/285,465
Filed by FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING CO., LTD., Foshan (CN); and MIDEA GROUP CO., LTD., Foshan (CN)
PCT Filed Jun. 25, 2019, PCT No. PCT/CN2019/092729 § 371(c)(1), (2) Date Apr. 14, 2021, PCT Pub. No. WO2020/078032, PCT Pub. Date Apr. 23, 2020.
Claims priority of application No. 201811208316.4 (CN), filed on Oct. 16, 2018; and application No. 201821682041.3 (CN), filed on Oct. 16, 2018.
Prior Publication US 2021/0379609 A1, Dec. 9, 2021
Int. Cl. B05B 1/20 (2006.01); A47L 15/22 (2006.01); A47L 15/42 (2006.01); B05B 1/04 (2006.01)

CPC B05B 1/20 (2013.01) [A47L 15/22 (2013.01); A47L 15/428 (2013.01); B05B 1/044 (2013.01)]

16 Claims

1. A water spraying pipe comprising:

a pipe body having a water inlet end, and a water spraying hole provided in a pipe wall thereof; and

a water spraying groove defined in the water spraying pipe at a position corresponding to the water spraying hole,

wherein the water spraying hole is in communication with the water spraying groove,

wherein a diameter Φ of the water spraying hole is greater than a width l of a widest portion of the water spraying groove,

wherein the water spraying hole comprises a water inlet section and a transition section extending from the water inlet section to the water spraying groove, and the transition section cuts a bottom of the water spraying groove to extend to a groove opening of the water spraying groove,

wherein a diameter d of a top of the transition section is less than a diameter D of the water inlet section, and

wherein a width of the water spraying groove at a junction with the top of the transition section is k, and the diameter d of the top of the transition section is greater than or equal to twice k.