Patent ID: 8235425

Claim:
A lever arm coupling for detachably connecting hose lines, comprising a first connection part and a second connection part to a sealing ring, wherein the second connection part encompasses a receptacle housing comprising a receptacle space, on which at least one lever arm is supported so as to be moved pivotably about a pivot bolt, which defines a pivot axis, with a pressure application section reaching through a radial opening of a housing wall, so that the lever arm can be brought from a locking position via a pressure release position into a release position and back, wherein the pressure application section positionally fixes a front side of the first connection part in the locking position or positionally releases the front side in either the pressure release position or the release position, respectively, wherein a securing disk is supported in a pivotable manner on the pivot bolt in an approximately parallel direction to the pressure application section and independent on the at least one lever arm, partially projects through the radial opening into the receptacle space and can be operatively connected to the first connection part, whereby the first connection part can be positionally fixed in a clamping manner in a secured pressure release position relative to the second connection part, wherein the securing disk comprises an elongated hole, by means of which the securing disk is pivotably supported on the pivot bolt.