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 |
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.
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