Oil box cover for large-scale bus

Abstract

The invention relates to a cover of oil tank used in large passenger car, which is directly mounted on the frame of vehicle, wherein it comprises a connecting base, a sealing cover, and an oil through hole at the middle of connecting base; the oil through hole via one tube is through to the oil tank inside the vehicle; the sealing cover covers the connecting base, which comprises an upper cover and an lower cover, a connecting rod and a spring; the upper and lower covers both have through holes; one end of connecting rod is movably connected to the through hole of upper cover, while another end is fixed to the through hole of lower cover; the part of connecting rod that between the upper and lower covers is sheathed via spring; two ends of spring are independently contacted to the bottom of upper cover and the top of lower cover. Compared with present technique, the invention can avoid the door of oil tank; when feeding oil, only needing opening sealing cover; and it improves the sealing property and anti-reflux property of sealing cover.

Description

technical field [0001] The invention relates to a fuel tank cap, in particular to a fuel tank cap used on a large passenger vehicle. Background technique [0002] At present, the fuel tank caps on the fuel tanks of existing large passenger cars, buses, buses and transport trucks cannot be well combined and unified in terms of sealing, easy operation, and anti-theft. For example, in terms of ease of operation when refueling, most of the fuel tanks on the existing large car bodies are installed inside the car body, and the fuel tank cap is directly installed on the fuel tank correspondingly, and is also located inside the car body. Corresponding to the fuel tank cap, a fuel tank door is opened on the car body shell. When refueling, you need to open the fuel tank door first, then extend into the internal fuel tank cap, and open the fuel tank cap before refueling. Especially for large domestic passenger cars, the fuel tank is mostly located in the luggage compartment, and the ...

AI Technical Summary

Problems solved by technology

This technical solution adopts the principle of shaft connection and pressure seal, although it is not easy to lose the fuel tank cap and the switch is convenient, but there are still deficiencies in sealing and anti-leakage performance

[0003] Some of the fuel tank caps in the above-mentioned prior art are improved and enhanced in terms of sealing and leakage prevention, and some are improved in terms of easy operation, but they still cannot effectively combine the advantages of the above three aspects. Combined together, there is a fundamental improvement and improvement, especially for the fuel tank caps on large passenger cars, buses, buses and transport trucks, in terms of convenience and easy operation of refueling, as well as leak-proof and sealing performance. Existing oil tank cover does not combine the advantages of these three aspects simultaneously, still can't fundamentally solve these problems

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