A coupling device comprising a base member connectable to a first item and a release member connectable to a second item, the base and release members being releasably connectable together. The base member has a front face including a pocket. The release member comprises a body which is configured to be received in the pocket in a coupled position. The pocket has an open access end through which the release member can be slidingly inserted and removed. The base member includes a stop member moveable, by an actuator, between a lock position in which the stop member interengages with the release member to prevent removal of the release member from the pocket of the base member, and a release position in which the release member can be separated from the base member. A securing apparatus for releasably securing a mobile equipment to a support surface, and including the coupling device.