Auxiliary device of air filter

The invention discloses an auxiliary device of an air filter. The auxiliary device comprises a sleeve part made from 45# hardening and tempering steel and is characterized in that a connecting taper hole matched with a connecting taper rod is formed in the upper end face of a connecting sleeve, and at least a pair of groove and boss which are matched is arranged on the connecting taper hole and the connecting taper rod. One end of the sleeve part is matched with the driving end of a pneumatic wrench, two slot-type grooves are formed in the side wall of the other end of the sleeve part, and thetwo grooves can be clamped into an annular flange with an annular bolt. The auxiliary device is reasonable in design, complete in function, simple in operation, high in efficiency, safe in work, goodin economy, convenient to maintain and the like. 本发明公开了种空气过滤器的辅助装置，包括45#调质钢制成的套筒件，其特征在于所述连接套上端面设有与连接锥杆相配合的连接锥孔，所述连接锥孔和连接锥杆上至少设有对相配合的凹槽和凸台；所述套筒件的端与风动扳手的驱动端匹配，所述套筒件的另端的侧壁上设有两个呈字型的开槽，所述两个开槽能够卡入带环螺栓的环缘。本发明设计合理，功能齐全，操作简单，效率高，工作安全，