| 摘要 |
A quick-release closure (5) for the attachment of filter inserts (1) into the orifices (3) of a headplate (4) or a filter base, a filter cover or a filter wall in bag filter plants is presented, each filter insert (1) being essentially composed of a support basket (10) having a cover (11) and a venturi tube (14), tensioning clip (12) and a filter bag (13) and being attachable to the headplate (4). The quick-release closure (5) is essentially composed of the tensioning clip (12) which is connected to the cover (11) and has two hook-shaped open ends (40, 41) which can be lodged by rotation in recesses (32, 33) of mounting lugs (30, 31) attached to the headplate (4). The open ends (40, 41) of the tensioning clip (12) are designed as tension springs and the tensioning clip (12) itself has a torsion spring which can be tensioned by eccentric discs (42, 43). The cover (11) particularly expediently has a rim convexity (16) and the filter bag (13) a bead (17) which comes to rest between the headplate (4) in the rim region of the orifice (3) and the rim convexity (16) of the cover (11). The spring force to be adjusted via the eccentric discs (42, 43) by displacing the tensioning clip (12) is dimensioned in such a way that a shrinking thickness of the bead (17) is made up for during the service life of the filter bags (13). <IMAGE>
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