Patent ID: 7951125

Claim:
A set of coupling parts for detachably connecting a first member and a second member by moving the second member axially in a connecting direction towards the first member, the set of coupling parts comprising, a first coupling part arranged on the first member, the first coupling part defining a first groove formed between a promixal wall and a distal wall, a second coupling part arranged on the second member, the second coupling part comprising a base and an inner wall and outer wall each extending axially from the base to define a recess that is sized to receive the distal wall of the first coupling part, the second coupling part including a tab extending radially inwardly from the outer wall, a connection part comprising an inner surface facing inwards towards the axis and an outer surface facing outwards away from the axis and defining a radial groove formed in a periphery of outer surface; wherein the connection part is insertable into the first groove of the first coupling part and the tab of the second coupling part is insertable into the radial groove of the connection part to retain the first coupling part and the connection part within the recess of the second coupling part.