Air filter

• Main Authors: XU KAIFENG, WU LIULIU, WANG AICHUN, YAO HAIHUA
• Format: Patent
• Language: Chinese; English
• Published: 04.10.2022
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The utility model discloses an air filter which comprises a protective shell and a limiting rod welded to the center of the inner bottom face of the protective shell, a supporting disc is welded to the outer wall of the limiting rod, a plurality of springs are arranged on the top face of the supporting disc in a circumferential array mode, the outer wall of the limiting rod is sleeved with a filter element in a sliding mode, and the bottom face of the filter element abuts against the top ends of the springs. A groove is formed in the inner wall of the protective shell, one side of the groove communicates with a clamping groove, a sealing cover is arranged at the top end of the protective shell, a clamping block is welded to the bottom end of the sealing cover, and the clamping block can slide to the inner wall of the clamping groove from the inner wall of the groove; and through the arrangement of the supporting disc, the spring, the clamping groove and the clamping block, the situation that an existing devic