Anti-pulling testing device

The invention provides an anti-pulling testing device, and relates to the technical field of anti-pulling testing devices. A partition plate is fixedly connected to the middle of the interior of the distance adjusting frame, an adjusting frame A is slidably connected to the front end of the top of the distance adjusting frame, the rear end of the upper portion of the adjusting frame A is fixedly connected with the middle of the front end of the pushing and guiding frame, and an adjusting frame B is slidably connected to the rear end of the top of the distance adjusting frame. Through meshing transmission of arc-shaped lines at the rear ends of the four pulling arms and spiral grooves in the front end of a transmission ring, the four pulling arms synchronously slide towards the outer side, and then four corner positions of cloth fixed by clamping grooves in the front ends of the four adjusting clamps are pulled. The problem that the stress stability of the corners of the cloth cannot be determined due to the f