US 12,480,585 B2
Drive assembly for a diaphragm valve and diaphragm valve
Ralf Kettemann, Ingelfingen (DE)
Assigned to Buerkert Werke Gmbh & Co. KG, Ingelfingen (DE)
Filed by BUERKERT WERKE GMBH & CO. KG, Ingelfingen (DE)
Filed on Mar. 28, 2024, as Appl. No. 18/619,452.
Claims priority of application No. 102023108043.1 (DE), filed on Mar. 29, 2023.
Prior Publication US 2024/0328520 A1, Oct. 3, 2024
Int. Cl. F16K 7/12 (2006.01); F16K 7/14 (2006.01)
CPC F16K 7/12 (2013.01) [F16K 7/14 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A drive assembly of a diaphragm valve, comprising:
a drive unit having at least one pressure piece which can be displaced in a direction of stroke of the diaphragm valve and which is adapted to be coupled in a nondestructively detachable manner to a lock structure on a diaphragm of a fitting through which a fluid can flow to move the diaphragm,
a locking unit for connecting the fitting to the drive unit, the locking unit including a lock hook which is pivotably mounted to the at least one pressure piece and can assume an open and a closed position, and
a pneumatically moved actuating element which acts on the lock hook to move the latter into the closed and/or open position,
wherein the pneumatically moved actuating element is a pneumatic cylinder having a linearly displaceable piston, an axial end of the piston cooperating with a pressure surface on the lock hook, and wherein a movement direction of the piston is aligned perpendicular to the direction of stroke.