Direct insertion type temperature measuring device for high-temperature mechanical test

The invention provides a high-temperature mechanical test direct insertion type temperature measuring device which comprises a base, a pre-tightening assembly and an angle adjusting assembly are arranged above the base, and the pre-tightening assembly comprises a sleeve, a first spring, a sliding sleeve, a guide pipe and a thermocouple; the sliding sleeve is connected to the interior of the sleeve in a sliding mode, the first spring is arranged in the sleeve, one end of the first spring is fixedly connected with the sliding sleeve, and the guide pipe is fixedly connected to one side of the sliding sleeve. Through a direct insertion type structure, binding is not needed, the national standard requirement that a temperature measuring point must be on a test piece is met, and the action of binding the test piece is omitted; a high-temperature Y-shaped positioning pipe is arranged, so that the condition that a temperature measuring point is inaccurate due to slippage when the thermocouple is in point-to-point con