Top suspension type automatic door, PCR instrument and full-automatic nucleic acid detection system

The utility model relates to a top suspension type automatic door, a PCR (Polymerase Chain Reaction) instrument and a full-automatic nucleic acid detection system. A top suspension type automatic door comprises a door body, a door frame, a rotating shaft I, a crank connecting rod mechanism and a motor cam shaft driving mechanism. The door body is connected with the door frame through a rotating shaft I. The motor camshaft driving mechanism is connected with the crank-link mechanism which is connected with the door body, and the motor camshaft driving mechanism drives the crank-link mechanism to move so that the door body can be automatically opened or closed. The top suspension type automatic door opening device is scientific in design and ingenious in conception, the automation degree is improved, the equipment size is effectively reduced, and the space utilization rate is improved by adopting the top suspension type automatic door opening; and the device can be automatically turned on or turned off in the d