摘要：【中文】本发明提供一种智能厨卫防火止回阀，包括阀座、阀道、设于所述阀道内的止回阀片和设置于所述阀座上且与所述止回阀片连接的智能控制器；所述阀道内设有与所述阀道同轴的阀圈，所述止回阀片的厚度小于所述阀圈的厚度；所述止回阀片与所述阀道轴向垂直时，所述止回阀片的两个表面分别处于所述阀圈两端内，所述止回阀片的直径与所述阀圈的内径相等；与所述阀道轴向垂直的销轴一端贯穿所述阀圈后插入所述止回阀片内，另一端与所述智能控制器连接。阀道与止回阀片间设置了阀圈，且所述止回阀片的直径与所述阀圈内径相等，止回阀片与所述阀圈间能够实现球形无缝连接，大大增加了止回阀的封闭严密性，有效防止了烟浊气体的倒灌，其安全性能大大提高。 【EN】The invention provides an intelligent kitchen and bathroom fireproof check valve which comprises a valve seat, a valve channel, a check valve plate arranged in the valve channel and an intelligent controller arranged on the valve seat and connected with the check valve plate; a valve ring coaxial with the valve channel is arranged in the valve channel, and the thickness of the check valve plate is smaller than that of the valve ring; when the check valve plate is axially vertical to the valve way, two surfaces of the check valve plate are respectively positioned in two ends of the valve ring, and the diameter of the check valve plate is equal to the inner diameter of the valve ring; one end of a pin shaft which is vertical to the axial direction of the valve channel penetrates through the valve ring and then is inserted into the check valve sheet, and the other end of the pin shaft is connected with the intelligent controller. The valve way and the check valve block are provided with the valve ring, the diameter of the check valve block is equal to the inner diameter of the valve ring, the check valve block is in spherical seamless connection with the valve ring, the sealing tightness of the check valve is greatly increased, the backflow of turbid smoke gas is effectively prevented, and the safety performance of the check valve is greatly improved.