Random symbol number checker

The utility model provides a random symbol number checker, which comprises a housing, a storage chamber for storing color balls, a main shaft, and a counting device for counting the number of rotation of the main shaft. The main shaft is arranged in the vicinity of the storage chamber, which is divided into a bright chamber and a dark chamber, and the color balls are respectively divided into bright-chamber balls and dark-chamber balls. A leak channel is formed at the bottom of the dark chamber, and the main shaft is a unidirectional rotation shaft and is provided with a winding channel corresponding to the leak channel along the axial direction for storing the dark-chamber balls. A window for displaying the dark-chamber balls is provided on the housing, and the balls in the dark chamber can enter the winding channel through the leak channel and can be displayed through the window by rotating the main shaft. A lower ball channel for accommodating the bright-chamber balls and a lock chamber are equipped at the lower part of the bright chamber, and the main shaft is also provided with a middle ball channel and a lock hole corresponding to the lower ball channel and the lock chamber. The bright-chamber balls selected from the bright chamber may enter the lower ball channel through an upper ball channel, the middle ball channel on the main shaft and the lock hole; and the winding channel, the lock hole and the middle ball channel are equipped in the same region in the axial direction of the main shaft. The utility model has simple structure, smart design, and low cost, and can be used for lottery and number selection.