Connecting structure of fuel sensor and fuel tank

Abstract

The invention discloses a connecting structure of a fuel sensor and a fuel tank, comprising a fuel tank opening, wherein, a plurality of protruding parts are evenly distributed at the inner circumference of the fuel tank. The connecting structure further comprises a locking plate, wherein, a center hole and more than two protrusions are evenly distributed at the circumference of the locking plate, width of the protrusions is less than the distance among the adjacent protruding parts, and protrusions are corresponding to the protruding parts during installation; a mounting hole axially penetrates a fuel sensor base; a connecting piece is matched with the center hole and the mounting hole for connecting the fuel sensor base with the locking plate; and a sealing element is used for sealing the matching surface of the fuel sensor base and the fuel tank opening. The connecting structure has the effects that the fuel sensor drives the locking plate to move upwards by the connecting piece to press closely the fuel tank opening, thus realizing more reliable sealing and convenient and simple operation; and the connecting piece is matched with an elastic piece, thus effectively adjusting pressure and preventing fuel leakage.

Description

technical field [0001] The invention relates to a connection structure between a fuel sensor and a fuel tank, belonging to the technical field of automobiles. Background technique [0002] In existing technologies, such as figure 1 The connection structure between the fuel sensor and the fuel tank shown includes an open groove with a chamfer 5 at the bottom of the fuel sensor base 1 in the circumferential direction, a lock body 3 with a few-shaped protrusion and a chamfer, A fuel tank port 4 with several protrusions and an O-ring seal 2 arranged on the mating surface of the fuel sensor base 1 and the fuel tank port. [0003] When installing, the protrusion of the lock body 3 is matched with the opening groove and installed with the fuel tank port 4. The fuel sensor and the fuel tank cooperate with the relative rotation of the chamfer 5 of the lock body and the convex part of the fuel tank, so that the two sealing surfaces The distance between them becomes smaller and the O...

AI Technical Summary

Problems solved by technology

[0005] 1. Due to the reaction force of the O-ring, it is difficult to assemble the fuel sensor and the fuel tank;

[0006] 2. The O-shaped sealing ring is prone to wear and aging failure, resulting in loose fit, and it is difficult to meet the requirement of tight connection with the fuel tank for a long time;

[0007] 3. When the fit is loose, it is easy to cause oil leakage of the fuel sensor

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