An electromotion volleyball referee stand

摘要

The present invention relates to an electric volleyball referee that can automatically adjust the height of the chair installed in the volleyball referee, the present invention is the base, the cylinder vertically fixed on the base, interposed in the interior of the cylinder can be raised and lowered In the electric volleyball refrigeration unit having a lifting rod installed on the top and mounted on the upper portion of which the chair can be mounted, the volleyball jack is installed at the lower part of the cylinder, and the lifting rod is fixed by a control of the lifting adjustment means. Drive means for raising or lowering or stopping a predetermined length, and is installed on one side of the cradle, and comprises a lift control means for controlling the rotation of the drive means according to the key input.