Tensile test clamp for silicon core pipe

The utility model relates to the field of tensile tests of silicon core pipes, and discloses a tensile test clamp for a silicon core pipe. The clamp comprises a pull rod and a clamping sleeve, a mounting structure is arranged on the upper portion of the pull rod, and the clamping sleeve is a hollow pipe. The lower part of the pull rod is provided with an external thread; the upper portion of the clamping sleeve is provided with a stepped hole, and the lower portion of the clamping sleeve is provided with internal threads. The pull rod is placed in the clamping sleeve; the diameters of the upper parts of the step and the stepped hole are smaller than those of the lower parts; and the space between the external thread and the internal thread forms a clamping area of the clamp. The inner supporting, outer clamping and two-side clamping of the inner wall and the outer wall of the silicon core pipe are achieved through the pull rod and the clamping sleeve, it is guaranteed that the silicon core pipe is evenly stre