US 12,169,044 B2
Water circulation pipeline, control box and massage water pool
Zhiyue Wang, Shanghai (CN)
Assigned to ORIENTAL RECREATIONAL PRODUCTS (SHANGHAI) CO., LTD, Shanghai (CN)
Appl. No. 17/639,813
Filed by ORIENTAL RECREATIONAL PRODUCTS (SHANGHAI) CO., LTD, Shanghai (CN)
PCT Filed Aug. 14, 2020, PCT No. PCT/CN2020/109123
§ 371(c)(1), (2) Date Mar. 2, 2022,
PCT Pub. No. WO2021/042965, PCT Pub. Date Mar. 11, 2021.
Claims priority of application No. 201910828226.3 (CN), filed on Sep. 3, 2019.
Prior Publication US 2022/0325827 A1, Oct. 13, 2022
Int. Cl. F16L 9/18 (2006.01); A61H 33/00 (2006.01); E04H 4/12 (2006.01); F16L 9/19 (2006.01)
CPC F16L 9/20 (2013.01) [A61H 33/0087 (2013.01); E04H 4/12 (2013.01); A61H 2201/5051 (2013.01); F16L 9/18 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A water circulation pipeline, comprising:
an interface pipeline, comprising a first pipeline and a second pipeline, one of the first pipeline and the second pipeline being provided with a water inlet, the other one of the first pipeline and the second pipeline being provided with a water outlet, the water inlet and the water outlet being used for connecting with a water pool body respectively, and the second pipeline being nested in the first pipeline; and
a pipeline body, being provided with a third pipeline, wherein a first port of the third pipeline communicates with the first pipeline, and a second port of the third pipeline communicates with the second pipeline.