A kind of appendix quick coupling for having return-stopping function of what is closed in the utility model system,Main system includes the female joint chair and a pin end that can correspond to fastening,Mother's joint chair system has an inlet end and an outlet side,System is provided with more than one non-return valve and more than one spring in what mother's joint chair,The corresponding inlet end for fastening what mother's joint chair of the pin end system,And the more than one non-return valve and the more than one spring can be pushed against,The inlet end and the outlet side is set to form connected state； When mother's joint chair and pin end of the utility model form disengaging,The more than one spring system can push against the more than one non-return valve,Be connected to the inlet end can not with the outlet side,The air that can avoid in air bed leaks,It can be communicated simultaneously with air bed pipeline,To achieve the effect that pressure is equal between air bed and each pipeline.本新型係關於一種具逆止功能之輸氣管快速接頭，主要係包括可對應扣合的一母接座及一公接頭，該母接座係具有一進氣端及一出氣端，於該母接座內係設置有一個以上的逆止閥及一個以上的彈簧，該公接頭係對應扣合於該母接座之進氣端，並可推抵該一個以上的逆止閥及該一個以上的彈簧，使該進氣端與該出氣端形成連通狀態；本新型之母接座與公接頭形成脫離時，該一個以上的彈簧係可推抵該一個以上的逆止閥，使該進氣端與該出氣端無法連通，可避免氣墊床內的空氣外洩，同時能夠與氣墊床管路相通，以達到氣墊床與各管路間壓力相等的效果。
