An aircraft fuel tank servicing connector

Abstract

The application relates to the technical field of guarantee joints, in particular to an airplane fuel tank guarantee joint which comprises a hand control part, a telescopic butt joint part is arranged in the hand control part, a dustproof part is arranged on the top of the hand control part, a joint part is arranged on an airplane fuel tank, in a refueling butt joint process, an inner extension joint and a butt joint oil head are inserted into the joint part of the fuel tank at the same time, a joint block is pushed open, and the oil path of the fuel tank end is opened; at the same time, the butt joint main body moves upwards to release the pressing of the inner top block on the filling block, the oil path of the oil pipe end is synchronously opened, when the refueling is completed and retracted, the inner top block immediately pushes the filling block to block the oil path of the oil pipe through the slope cooperation, the joint block is instantaneously reset to block the oil path of the fuel tank under the action of a spring, double-end synchronous flow interruption of the first sealing and then pulling out is realized, there is no residual fuel overflow on the joint end face, the inner hole and the oil pipe, the problem that residual fuel in the joint cavity and the port cannot be timely blocked in the pulling-off process after the filling is completed, the residual fuel is easy to overflow and drop from the butt joint end face, and fuel waste is caused is effectively avoided.

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