Air filter convenient to disassemble and maintain

The air filter comprises a first frame, a second frame and a bolt rod, a first supporting frame rod is welded in the first frame, a butt-joint sleeve is embedded in the inner side of the first frame, a through hole is formed between the butt-joint sleeve and the first frame in a penetrating mode, and the bolt rod is inserted into the through hole. A second frame is arranged on one side of the first frame, air filtering cotton is clamped between the second frame and the first frame, and a first supporting frame rod is welded to the interior of the second frame. The air filter device is convenient to disassemble and assemble, the air filter cotton is convenient to maintain, and the air filter cotton can be fixed after being installed, so that the air filter cotton is not easy to loosen and shift. 本实用新型公开了一种便于拆卸保养的空气过滤器，包括一号框架、二号框架和插销杆，所述一号框架内部焊接有一号支撑架杆，所述一号框架内侧嵌设有对接套，所述对接套和一号框架之间贯穿开设有通孔，所述一号框架一侧设置有二号框架，所述二号框架和一号框架之间夹持有空气过滤棉，所述二号框架内部焊接有一号支撑架杆。本实用新型拆装便捷，方便对空气过滤棉进行保养，且安装后可以对空气过滤棉进行固定，使其不易松动、移位。