One-way valve device of gearbox

The one-way valve device comprises a one-way valve assembly, the one-way valve assembly comprises a valve element and an elastic element, the valve element is movably arranged in a transmission shell and used for sealing an oil outlet of a mechanical pump, the elastic element is used for applying elastic acting force to the valve element, and the mechanical pump is provided with an installation face used for making contact with the valve element. And the oil outlet is formed in the mounting surface. According to the one-way valve device of the gearbox, the installation face of the oil outlet of the mechanical pump serves as the sealing face of the one-way valve, the structure of the one-way valve is simplified, cost and installation space are saved, structural compactness is improved, and better free layout is achieved. 本实用新型公开了一种变速箱的单向阀装置，包括单向阀组件，所述单向阀组件包括可移动的设置于变速器壳体内且用于封闭机械泵的出油口的阀芯和用于对阀芯施加弹性作用力的弹性元件，机械泵具有用于与阀芯相接触的安装面，出油口设置于该安装面上。本实用新型变速箱的单向阀装置，利用机械泵出油口的安装面作为单向阀密封面，简化了单向阀的结构，实现节省成本以及安装空间，提高结构紧凑性，实现更好的自由布局。