Component in-furnace temperature calibration device convenient to install

The utility model discloses a component in-furnace temperature calibration device convenient to install, which comprises a horizontal adjusting structure, one side of the horizontal adjusting structure is fixedly connected with a vertical adjusting structure, one side of the horizontal adjusting structure is fixedly connected with a sleeve, a connecting rod is inserted into the bottom end of the sleeve in a sliding manner, and the bottom end of the connecting rod is fixedly connected with a thermocouple. A connecting rod is arranged in the casing pipe, a small hole is formed in one side of the connecting rod, a limiting frame is inserted into the small hole in a sliding manner, and a first spring is fixedly connected between the limiting frame and the outer wall of the casing pipe. And under the elastic force action of the first spring, the limiting frame does not leave the small hole under the condition of no external force, so that the thermocouple can be prevented from falling off during temperature calibr