The utility model relates to a tooth punching machine, which comprises a main barrel seat, a push barrel seat and a tooth punching pipe.The push bucket seat includes a push bucket body which is movably combined with the main bucket seat, a water storage space defined by the push bucket body, and a check valve installed on the push bucket body. The push bucket body and the main bucket seat coordinate to define a compression space around. The check valve is between the water storage space and the compression space, and can contain liquid in one-way way Move from the storage space to the compressed space.By means of the design that the push bucket seat can move between the non compressed position and the compressed position relative to the main bucket seat, the user only needs to press the push bucket seat to clean.And in the cleaning process, the tooth washing function continuously ejects liquid, allowing the user to clean efficiently.一種沖牙機，包含一個主桶座、一個推動桶座，及一個沖牙管。該推動桶座，該推動桶座包括一個可移動地結合於該主桶座內的推桶本體、一個由該推桶本體界定而成的儲水空間，及一個安裝於該推桶本體的逆止閥，推桶本體與主桶座相配合圍繞界定出一個壓縮空間，該逆止閥介於儲水空間與壓縮空間之間，並可容液體單向地自儲水空間往壓縮空間的方向移動。透過該推動桶座可相對於該主桶座在非壓縮位置及壓縮位置間移動的設計，使用者只需下壓該推動桶座就能進行清洗。且在清洗過程，沖牙機能持續不間斷地噴出的液體，讓使用者有效率地進行清洗。
