A dustproof sealing device for an automobile fuel tank cap

Abstract

The utility model discloses a dustproof sealing device of automobile oil tank cover relates to oil tank cover technical field, including base, base fixed mounting is in the car body oil tank mouth position, and one side of base rotatory mounting has the outer cover, and the inner side of outer cover is provided with sealing structure. The utility model discloses the mechanical structure design of inflating and pressure -relief linkage trigger opening and closing action of outer cover, realizes multiple remarkable beneficial effects: on one hand, with the fixed block of outer cover closing push slider, drive piston block to the dynamic process of the inflation of sealing air bag ring, make air bag ring in the saturated state self -adaptation fill the gap of outer cover edge and base, eliminate the sealing blind area of traditional sealing strip easy to miss, form the double protection of gas pressure support and physical adhesion, effectively block dust, mud invasion, on the other hand, the whole inflation, pressure -relief process is completely relied on the opening and closing self -determination of outer cover and completes, need not user additional operation.

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