A fuel filler pipe assembly

Abstract

The invention discloses a fuel filler pipe assembly, which comprises a fuel filler pipe with a specific space curved direction and an air outlet pipe with a specific spatial curved direction and an air outlet connected to the fuel filler end of the fuel filler pipe. The anti-spill cover to prevent the fuel from spilling when the fuel gun is refueling. The refueling end of the refueling pipe has a refueling cavity that can accommodate the refueling of the refueling gun, which is formed by expanding the diameter of the refueling process. The inner sealing inclined surface of the sealing fit and the arc-shaped surface that can be turned outward in an arc shape can be limitedly matched with the fuel tank cap. The inner wall of the refueling chamber is located below the inner sealing inclined surface and is integrally formed by rolling technology to form a screw connection with the fuel tank cap. The internal thread, the anti-overflow sleeve is fixedly installed in the refueling chamber and is located below the internal thread. The invention has the advantages of simple structure, smooth refueling, good sealing performance and high safety factor, and can meet the refueling demand of the current automobile market.

Description

technical field [0001] The invention relates to the field of vehicle accessories, in particular to a fuel filling pipe assembly used in vehicles to deliver fuel from a fuel gun to a fuel tank. Background technique [0002] With the rapid development of my country's automobile industry and the continuous improvement of people's living standards, the demand for family cars has also increased sharply. Cars are usually fueled with gasoline or diesel oil and are equipped with a fuel tank. In order to facilitate the sealing and refueling of the fuel tank, the filling port of the fuel tank is provided with a special filler pipe. In the prior art, the refueling end of the traditional refueling pipe is usually provided with a threaded pipe body that can prevent fuel from overflowing when refueling. The threaded pipe body is generally installed in the refueling pipe by press-fitting. The pipe is fixedly matched and screwed with the fuel tank cap, which leads to its complex structure ...

AI Technical Summary

Problems solved by technology

In the prior art, the refueling end of the traditional refueling pipe is usually provided with a threaded pipe body that can prevent fuel from overflowing when refueling. The threaded pipe body is generally installed in the refueling pipe by press-fitting. The pipe is fixedly matched and screwed with the fuel tank cap, which leads to its complex structure and high processing cost. At the same time, the traditional fuel filler pipe has a small sealing contact surface with the fuel tank cap, which is easy to cause oil leakage. Therefore, the traditional fuel filler The tube still needs to be further improved

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