| 摘要 |
The present utility model discloses a universal gasoline engine fuel tank cover including an outer shell, an inner shell and a sealing cover located on the upper surface of the inner shell, wherein the outer shell and the inner shell are connected through a ratchet mechanism and a limiting mechanism, the inner shell having a partition I and a partition II disposed in its upper cavity to divide the upper cavity into a first adsorption chamber, a second adsorption chamber and a third adsorption chamber, the first adsorption chamber and the second adsorption chamber having fine carbon particles disposed therein, the third adsorption chamber having a cylindrical foam disposed therein, the bottom of the partition I being disposed with an air hole I connecting the third adsorption chamber to the fuel tank, and the bottom of the first adsorption chamber being disposed with an air hole II causing the first adsorption chamber to be connected to the atmosphere outside. The present utility model is advantageous in that it has a delicate structural design, it is easy to assemble, its cost is low, it can effectively prevent direct exhaust of volatilized gasoline into the atmosphere, and accurate judgment can be made as to whether the fuel tank cover is adequately tightened.
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