Door handle having actuation element for disinfecting a grip surface of the door handle, as well as door handle fitting and door

A door handle having an actuation element (12) for sanitizing a handle surface (14) of the door handle (10), the actuation element (12) being disposed at least partially in the door handle (10) and delimiting a hollow (16) in the interior of the door handle (10) in a first non-actuated position, the door handle (10) being pierced by a channel (24) which opens into the hollow (16) on one end and has a connector (26) on another end for a connection to a container (28) to guide a liquid from the container (28) to the hollow (16) via the channel (24) and the connector (26), the actuation element (12) being manually displaceable against at least one return element (30), wherein the hollow (16) is sealed by means of at least one sealant (18) between a first sealing surface (20) of the actuation element (12) and a second sealing surface (22) of the door handle (10), wherein the sealant (18) is an elastic o-ring (19) fit in a groove (34) in one of the first and second sealing surfaces (20, 22), a cutout (32) being formed in a surface of the other of the first and second sealing surfaces (20, 22) that is opposite to the groove (34), wherein the o-ring moves outside of the cutout (32) in a second position of the actuating element (12) decreasing the volume of the hollow (16) with respect to the first non-actuated position, a blocking section (44) of the first sealing surface (20) being disposed and oriented such that, at a transition between the hollow (16) and the channel (24), the blocking section (44) of the actuation element (12) at least partially closes or blocks the channel (24) when displacing the actuation element (12) from the first non-actuated position to the second position, the actuation element (12) displacing the liquid from the hollow (16) towards the handle surface (14) and the sealant (18) abutting against both sealing surfaces (20, 22) in a third position of the actuation element (12) further reducing the volume of the hollow (16) with respect to the second position in order to entirely close the hollow (16).