Overall fuel tank cap sealing structure of airplane

The invention relates to an aircraft integral fuel tank cap sealing structure, belongs to the technical field of aircraft design, and can effectively improve the success rate and prolong the service life of aircraft integral fuel tank cap sealing. The structure comprises an oil tank opening cover, an oil tank opening frame, a sealing assembly and a fastening assembly. The sealing assembly is arranged between the opening cover and the opening frame, and the sealing assembly, the opening cover and the opening frame are in sealed fastening connection through the fastening assembly; the sealing assembly comprises a sealing rubber pad and a sealing rubber strip; the sealing rubber mat is of an annular structure with a certain width, the sealing rubber strip is of an O-shaped structure arranged below the sealing rubber mat, and the sealing rubber mat and the sealing rubber strip are integrally connected. An O-shaped sealing groove is formed in the opening frame, and the sealing rubber strip is embedded in the seali