Fixed joint for thermal control instrument verification

The utility model discloses a fixed joint for thermal control instrument verification, and belongs to the technical field of thermal control instruments, and the fixed joint comprises a fixed frame, the upper surface of the fixed frame is fixedly provided with three ports, a four-way wire is clamped in the fixed frame, the top end of the four-way wire is electrically connected with the ports, the left side surface of the four-way wire is fixedly provided with a connecting port, and the connecting port is connected with the four-way wire. Three sliding plates are fixedly installed on the two side faces of the fixing frame, and a sliding groove is formed in the upper surface of each sliding plate. According to the fixing connector for thermal control instrument verification, the three connectors are matched with the fixing frame and the four-way wire, so that the three ports can be connected in series, thermal control instruments of different models can be connected through the ports of different models, then t