Printing structure, lottery ticket reader and lottery ticket all-in-one machine

The invention is applicable to the field of equipment printing, and provides a printing structure, a lottery ticket reader and a lottery ticket all-in-one machine. The printing structure comprises a shell which comprises an upper shell and a lower shell, and the upper shell and the lower shell are buckled to form a paper feeding channel for paper to move; the printing structure also comprises a printing assembly which comprises a printing rubber roller, a printing head, a connecting traction piece, a left baffle plate, a right baffle plate, a left sensor and a right sensor, the traction piecemoves towards the printing rubber roller to enable the left baffle plate to leave the left sensor and then enable the right baffle plate to leave the right sensor; when the right sensor leaves the right sensor, the printing head abuts against the printing rubber roller, and the traction piece moves in the direction away from the printing rubber roller so that the left blocking piece can reach theleft sensor after the righ