Removable locking device

A device for removably connecting two pieces of an apparatus together comprising:

• two members, a first male member and a second female member, the first male member securable to one piece of the apparatus and the second female member being securable to a second piece of the apparatus, the first male member being configured to be in two positions in relation to the second female member, a first locked position in which the first male member is locked to the second female member and therefore the two pieces of apparatus are connected and a second unlocking position in which the first male member can be separated from the second female member to disconnect the two pieces of apparatus,
• wherein the first male member has two parts, a first outer part and a second inner part both configured to allow the second inner part to be slidable within the first outer part and locked against rotational movement of the second inner part within the first outer part, both the first outer part and the second inner part being configured to receive ball bearings in an arrangement to permit the second inner part to slidably move within the first outer part under a locking force applied by a biassing member toward a locked position and under hand pressure applied to the second inner part against a force applied by the biassing member to slidably move to an unlocking position.