Mounting assemblies for overhead rail systems and overhead rail systems to support a lift unit

A mounting assembly for a cross-rail of an overhead rail system, the mounting assembly comprising:

• a mounting rail configured to mount to a sidewall and comprising a bracket receiving recess comprising retention flanges;
• an attachment bracket comprising an attachment portion and an extension portion, wherein the attachment portion is shaped to correspond to the bracket receiving recess of the mounting rail such that the attachment portion is positionable within the bracket receiving recess and the extension portion extends through a slot between the retention flanges;
• and
• a spring-loaded pin coupled to the attachment bracket, the spring-loaded pin comprising a retracted position and an extended position, wherein the spring-loaded pin is biased to the extended position to lock a cross-rail of an overhead rail system to the extension portion of the attachment bracket;
• wherein the spring-loaded pin comprises:
• a first pin member extending in a first direction;
• a second pin member extending in a second, opposite direction;
• and
• a spring member coupling the first pin member to the second pin member.

An overhead rail system, comprising:

• a first mounting assembly configured to be coupled to a first sidewall and a second mounting assembly configured to be coupled to a second sidewall, the first and second mounting assemblies each comprising:
• a mounting rail configured to be mounted to a sidewall and comprising a bracket receiving recess;
• an attachment bracket comprising an attachment portion and an extension portion, wherein the attachment portion is positioned within the bracket receiving recess;
• and
• a spring-loaded pin coupled to the attachment bracket, the spring-loaded pin comprising a retracted position and an extended position, wherein the spring-loaded pin is biased to the extended position;
• and
• a cross-rail configured to support a lift unit thereon, the cross-rail comprising a first support end removably coupled to the attachment bracket of the first mounting assembly via the spring-loaded pin of the first mounting assembly and a second support end removably coupled to the attachment bracket of the second mounting assembly via the spring-loaded pin of the second mounting assembly;
• wherein the mounting rail comprises:
• a mounting base configured to be fixed to the sidewall;
• a first retention flange extending from a first edge of the mounting base at a first oblique angle relative to the mounting base and defining a first retention surface;
• and
• a second retention flange extending from a second edge of the mounting base at a second oblique angle relative to the mounting base and defining a second retention surface.