High-temperature tensile test clamp for rigid thermal insulation material

The utility model discloses a high-temperature tensile test fixture for rigid thermal insulation materials, which relates to the technical field of high-temperature tensile tests for rigid thermal insulation materials and comprises a first frame, a second frame and a dog-bone-shaped sample, one side end of the first frame is connected with a first pull rod, and two sides of an opening at the other side end of the first frame are connected with two limiting plates I; two first arc cushion blocks are symmetrically installed in the first frame and attached to the inner wall, and the two first arc cushion blocks make contact with the two limiting plates. According to the device provided by the utility model, by adopting a mode of clamping and loading by matching the arc shapes of the edges of the convex transition parts at the two ends of the dog-bone-shaped test sample with the arc-shaped clamping grooves of the first arc cushion block and the second arc cushion block, the problem that the clamping part of the t