Novel special capillary tube for testing machine

The utility model discloses a novel special capillary tube for a testing machine, which belongs to the technical field of capillary tubes and is characterized in that one end of a first upper tube body is sleeved with a sealing plug, the surface of the first upper tube body is clamped with a jacket, one end of the jacket is fixedly connected with a hook, and one end of a second upper tube body is fastened with a first connector through threads; a first connector is detachably connected between the first upper tube body and the second upper tube body, the other end of the first connector is in threaded connection with a connecting seat, the other end of the connecting seat is in threaded connection with a lower tube body, and a second connector is detachably connected between the first upper tube body and the second upper tube body. According to the capillary tube, the lower tube bodies with different diameters can be conveniently connected according to actual needs, the application range of the capillary tube