Abstract: A waterproof air pump, an inflatable product, and a production method and a utilizing method for the inflatable product are provided. The waterproof air pump includes a waterproof shell and an air pump body removably connected in the waterproof shell. The waterproof shell includes a lower shell and a waterproof upper cover. The lower shell and the waterproof upper cover are removably connected in a relative sealing. The air pump body and the lower shell are removably connected. An air outlet of the air pump body communicates with an air outlet of the lower shell. The outer wall of the lower shell is sealingly connected to the inflatable product. The air outlet of the lower shell is located in the inner cavity of the inflatable product, and the waterproof upper cover is exposed outside the inflatable product.

Abstract: An air-flow channel structure of an air pump, a micro air pump, a waterproof air pump, and an inflatable product are provided. The air-flow channel structure of the air pump includes an air chamber. The air inlet of the air chamber communicates with an axial-direction air inlet of the centrifugal impeller arranged inside the air chamber. The air chamber is formed with an air-guiding wall inside that gradually expands in a spiral shape around an axis of the centrifugal impeller. An air-guiding channel is formed between the air-guiding wall and the centrifugal impeller. A tangent air outlet is provided at the tail end of the air-guiding channel. The micro air pump is configured with the air-flow channel structure of air pump. The waterproof air pump includes a waterproof exterior shell and the micro air pump removably connected to the waterproof exterior shell inside.