Fuel tank structure of motorcycle

Abstract

The invention discloses a fuel tank structure of a motorcycle. The fuel tank structure of the motorcycle comprises an upper fuel tank shell and a lower fuel tank shell. A fuel filler is formed in one end of the upper fuel tank shell. The lower portion of the fuel filler is communicated with the lower fuel tank shell. A fuel deflector used for preventing fuel from overflowing is arranged between the fuel filler and the lower fuel tank shell. A fuel outlet nozzle is arranged on the lower portion of the lower fuel tank shell. The fuel outlet nozzle and the lower fuel tank shell are fixed in a welded mode. An overflowing pipeline clamp is further arranged on the upper fuel tank shell and is used for fixing an overflowing pipe. The overflowing pipeline clamp is located on one side of the fuel filler. The contact surface where the upper fuel tank shell and the lower fuel tank shell are connected is of a plane structure. The upper fuel tank shell and the lower fuel tank shell are fixed in an electric resistance welding mode. Four installation holes where a motorcycle frame is installed are formed in the four corners of the upper fuel tank shell respectively and comprise two round holes and two strip-shaped holes. The two round holes are arranged in a diagonal mode. The fuel tank structure of the motorcycle has the advantages of being simple in mold joint, more suitable for welding fixation, capable of relieving aging of a seal ring, easy to install, firm in installation, capable of saving materials and the like.

Description

technical field [0001] The invention relates to a motorcycle oil tank structure, which belongs to the field of motorcycle manufacturing. Background technique [0002] The existing motorcycle fuel tank structure is that the oil cap is directly connected to the fuel tank by threads. During the running of the motorcycle, the fuel is washed in the fuel tank and is easy to contact with the rubber sealing ring on the fuel cap. After fuel oil is prone to oxidation reaction and rapid aging, the sealing performance of the aging sealing ring will be reduced, and there will be serious oil leakage. Moreover, the welding between the upper and lower shells of the fuel tank is not firm, and it is easy to leak air, and once the fuel spilled out meets an open flame during the running or parking of the motorcycle, it is easy to cause the fuel tank to catch fire and explode. In addition, the existing fuel tank structure also has the problems of low utilization rate and single function. Cont...

AI Technical Summary

Problems solved by technology

[0002] The existing motorcycle fuel tank structure is that the oil cap is directly connected to the fuel tank by threads. During the running of the motorcycle, the fuel is washed in the fuel tank and is easy to contact with the rubber sealing ring on the fuel cap. After fuel oil is prone to oxidation reaction and rapid aging, the sealing performance of the aging sealing ring will be reduced, and there will be serious oil leakage

Moreover, the welding between the upper and lower shells of the fuel tank is not firm, and it is easy to leak air. Moreover, once the fuel spilled out encounters an open flame during the driving or parking of the motorcycle, it is easy to cause the fuel tank to catch fire and explode.

In addition, the existing fuel tank structure also has the problems of low utilization rate and single function

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