Vacuum civil aircraft closestool

The utility model relates to a vacuum type civil aircraft closestool which comprises a closestool seat, and the closestool seat comprises an inner surface and an outer surface. At least one air duct communicating the inner surface and the outer surface; at least one airway closure corresponding to the at least one airway; and an automatic closing mechanism. The toilet seat can effectively isolate the interior of the toilet from the environment of a washroom while meeting the air supply requirement of the vacuum toilet, and odor is prevented from being dissipated to the washroom. 本实用新型涉及一种真空式民机马桶，该马桶包括马桶座，该马桶座包括：内表面和外表面；连通内表面和所述外表面的至少一个通气道；与至少一个通气道对应的至少一个通气道封闭件；以及自动关闭机构。该马桶座能在满足真空马桶补气需求的同时，有效地将马桶内部和盥洗室环境隔绝，防止臭味散逸至盥洗室。