Feeder: metal constructional part, including open and close types, and used for loading cargo.

料斗：料斗是金属焊接件，有敞开和密封两种形式。用来盛装货物。

youdao

The utility model relates to a mechanical movable overhead door, which achieves labor-saving manual operation and rapid open and close and is primarily used for a cargo vehicle.

一种手动操作能省力、快捷开关的机械式移动升降门，主要应用于载货机动车。

youdao