The invention relates to the technical field of automobile refueling devices, and provides a drainage structure for an auxiliary gate unit, the auxiliary gate unit and an uncovered refueling device. The drainage channel is arranged on the auxiliary gate unit, and the drainage channel is communicated with the drainage port; the blocking mechanism is arranged on the auxiliary gate unit and has a blocking state and an opening state; wherein the plugging mechanism in the open state can open the drainage channel; the plugging mechanism can be switched from an open state to a plugging state under the action of external force so as to plug the drainage channel, and the situations that the sealing performance of the refueling device is reduced and a refueling gun is inserted after freezing to cause damage to part of the structure of the refueling device are avoided; due to the fact that the auxiliary gate unit and the whole refueling device have a certain sealing requirement during refueling, the blocking mechanism is arranged to block the drainage channel and the drainage port, and therefore sealing refueling is achieved, and meanwhile the device can correspond to a steam backflow type refueling gun.

    本发明涉及汽车加油装置技术领域,提供一种用于副闸门单元的排水结构、副闸门单元及无盖加油装置,排水结构包括:排水口,设于副闸门单元;排水通道,设于副闸门单元,排水通道与排水口相连通;封堵机构,设于副闸门单元,封堵机构具有封堵状态和打开状态;其中,处于打开状态的封堵机构能打开排水通道;封堵机构能够在外力作用下由打开状态切换至封堵状态,以封堵排水通道,避免了出现加油装置的密封性下降和冻结后加油枪插入造成加油装置的部分结构破损情况;而由于加油时对副闸门单元及整个加油装置有一定的密封要求,因此设有封堵机构封堵排水通道和排水口,实现密封加油的同时,也能对应蒸汽回流式加油枪。


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    Title :

    Drainage structure for auxiliary gate unit, auxiliary gate unit and uncovered refueling device


    Additional title:

    用于副闸门单元的排水结构、副闸门单元及无盖加油装置


    Contributors:
    YUAN YELIAN (author)

    Publication date :

    2024-10-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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