Experimental instrument of Archimedes screw water pump

An experimental instrument of an Archimedes screw water pump belongs to the field of teaching aids. The experimental instrument is composed of a pedestal, an auxiliary pool, a water outlet, an upper pool, a fixing support, an Archimedes screw device, an anti-overflow slideway, a lower pool and a transmission water channel. The Archimedes screw device includes a handle, a central shaft, a separator plate, a cylinder and an Archimedes screw hollow tube. The lower pool is positioned at one end of the pedestal, the side, opposite to the lower pool, of the pedestal is higher, the upper pool is fixed in the higher side, the auxiliary pool is fixed in the side surface of the higher part of the pedestal, the upper pool is provided with the water outlet, the water outlet is communicated to the auxiliary pool, the bottom end of the auxiliary pool includes an opening, the lower pool is connected with the transmission water channel, the anti-overflow slideway is semicircular and is fixed between the upper pool and the lo