Fast-assembly type oil cover breathing mechanism

The utility model discloses a fast-assembly type oil cover breathing mechanism which comprises a first oil cover, a second oil cover and a filter block. The first oil cover is nested in the second oil cover, a first through hole and a second through hole are respectively formed in corresponding positions in the middle of the first oil cover and the second oil cover, and a filter block is arranged between the first through hole and the second through hole; the fast-assembly type oil cover breathing mechanism is simple in structure, reasonable in design, capable of automatically relieving pressure and convenient to use safely. 本实用新型公开了一种快装式油盖呼吸机构，包括第一油盖、第二油盖和过滤块；所述第一油盖嵌套在第二油盖中，并在第一油盖、第二油盖中间相对应位置分别设置第一通孔、第二通孔，在第一通孔、第二通孔之间设置过滤块；本实用新型提供结构简单、设计合理、可自行泄压、便于安全使用的一种快装式油盖呼吸机构。