| 摘要 |
The present invention relates to an air pump which simplifies the installation process of the air pump by embedding a backflow prevention valve in the air pump for supplying air to washing water when the washing water is injected to an injection nozzle, thereby reducing work time. Moreover, the air pump prevents water from leaking by removing the connection part between the backflow prevention valve and the air pump, thereby improving the reliability of the air pump to a user. |
