A built -in pipe for steel bottle

The utility model discloses a built -in pipe for steel bottle, including the pipe body, its characterized in that: the one end of pipe body is connected with the air outlet valve, is provided with adjust knob on the air outlet valve, the pipe body run through the steel bottle and extend to the bottom of steel bottle inner chamber, the pipe body one end that extends to steel bottle bottom be provided with the horn mouth, the pipe body on be provided with a plurality of air vents, be provided with the check valve on the air vent, the air vent arrange in near horn mouth department, the utility model discloses an effect that the structure has simple structure, the efficient and liquid surplus of giving vent to anger is low of horn mouth and air vent. 本实用新型公开了种用于钢瓶的内置导管，包括导管本体，其特征在于：导管本体的端连接有出气阀，在出气阀上设置有调节旋钮，所述的导管本体贯穿钢瓶并延伸至钢瓶内腔的底部，所述的导管本体延伸至钢瓶底部的端设置有喇叭口，所述的导管本体上设置有多个通气孔，在通气孔上设置有单向阀，所述的通气孔置于靠近喇叭口处，本实用新型通过喇叭口和通气孔的结构具有结构简单、出气效率高且液态余量低的效果。