Airplane auxiliary fuel tank pressure sealing device

The utility model provides an airplane auxiliary fuel tank pressure sealing device, and belongs to the technical field of aviation auxiliary fuel tank pressure sealing devices. The device comprises a conversion joint, a pressure gauge gasket, a hose, a bottom plate joint, a manual shifting piece, a cylindrical pin, a screw rod, a rotary locking piece, a locking piece gasket, a covering cap, a covering cap rubber mat and a baffle. The oil tank sealing performance testing device is simple and practical in structure, has high practicability, accuracy and sealing performance compared with a testing method that corresponding universal tools are selected only by manpower in the prior art, can provide better oil tank sealing testing efficiency, and reduces the scrapping probability of the oil tank and other associated accessories caused by testing the sealing performance of the oil tank. 本实用新型提出一种飞机副油箱压力密封装置，属于航空副油箱压力密封装置技术领域。该装置包括转换接头、压力表垫圈、软管、底板接头、手动拨片、圆柱销、螺杆、旋转锁紧片、锁紧片垫圈、口盖、口盖胶垫和挡板。本实用新型的结构简单实用，相对于现有技术中仅凭人工选取相对应的通