Effort-saving perforator

Disclosed is a labor-saving double-hole punching machine, which relates to office supplies, in particular to a modified punching machine. The utility model is composed of a base (1), a support (2), a supporting shaft (3), a lower bracket (4), an upper bracket (5), a punching column (6), a spring (7), and an upper cover (8). Two supports (2) are respectively fixed on both sides of the base (1); the lower bracket (4) is hinged with the support (2) through the supporting shaft (3); the punching column (6) is arranged under the lower bracket (4); the spring (7) covered on the punching column (6); the lower end of the upper bracket (5) is hinged with the upper end of the lower bracket (4); the upper cover (8) is arranged above two upper brackets (5). When in operation, the utility model can save half of the effort compared with the existing punching machine to achieve better punching results, through the twice leverage between the lower bracket (4) and the upper bracket (5).