Linkage control system of stretcher

The utility model discloses a linkage control system for a stretcher, which relates to the technical field of stretcher control and comprises a main cylinder quick descending module, a main cylinder quick descending module, a main cylinder quick descending module and a main cylinder quick descending module, the main cylinder low-speed pressurizing module is connected with the main cylinder rapid descending module and used for executing a main cylinder low-speed pressurizing action after executing the main cylinder rapid descending action; the pressure relief module is connected with the main cylinder low-speed pressurization module and used for executing the pressure relief action after executing the main cylinder low-speed pressurization action; the main cylinder return stroke and ejection cylinder ejection linkage module is connected with the pressure relief module and used for executing the main cylinder return stroke action and the ejection cylinder ejection action at the same time after executing the pre