Bidirectional oil inlet sealing structure of fuel nozzle

The utility model discloses a bidirectional oil inlet sealing structure of a fuel nozzle. The nozzle comprises a nozzle body, a nozzle upper cover and a first inner conical groove, an upper oil inlethole is fixedly formed in the top of the spray head upper cover; a second inner conical groove is fixedly formed in the outer side wall of the first inner conical groove; a sealing strip is inserted into an inner cavity of the first inner conical groove; a clamping groove is formed in the lower side of the inner ring of the sealing strip; a first inserting block is fixedly mounted on the lower endsurface of the sealing strip; a second inserting block is fixedly mounted on the outer side of the lower end surface of the sealing strip; a magnetic powder layer is fixedly installed on the inner side of the lower end face of the second inserting block and can seal the head of the product, the two inner conical grooves are matched to block the rubber ring in the groove, the rubber ring in the groove under high pressure i