Positioning structure for foam tester

The utility model discloses a positioning structure for a foam determinator, which comprises a determinator body, tank bodies are arranged on the left side and the right side of the top of the determinator body, cover plates are arranged on the tops of the tank bodies, a connecting frame is fixedly connected to the top of the determinator body, and a rotating wheel is arranged on the top of the connecting frame. And the bottom of the rotating wheel is fixedly connected with a screw rod. The rotating wheel is rotated, the rotating wheel drives the threaded rod to rotate, the threaded rod pushes the threaded sleeve to ascend through threads, the threaded sleeve drives the sliding rod to slide in the sleeve plate, and the sleeve plate drives the extrusion plates to rotate with the pin shaft in the connecting block as the axis. The effect of extruding and fixing the cover plate and the tank body is achieved, and the problems that an existing foam tester does not have the effect of rapidly installing a storage tan