Embodiments of a roll-in push cot may comprise a support frame comprising a pair of lateral sides extending between a front end and a rear end, and a pair of slidable tracks disposed in the lateral sides； a pair of leading legs and a pair of trailing legs pivotally connected to the support frame； a front carriage member slidingly disposed within the pair of slidable tracks at the front end of the support frame, and a mechanical loading system coupled to the support frame and connecting the pair of leading legs with the pair of trailing legs, wherein the mechanical loading system comprises a front actuator disposed on the support frame in the motion path defined by the front carriage member, such that movement of the front carriage member triggers the front actuator and thereby initiates the release of the trailing legs.
