A kind of the pressurization device with symmetric two-step orthogonal toggle force amplifier and the disk spring is designed

toggle force amplifier’s form and its working principle are introduced

and the mathematical model is formed by the combination of symmetric two-step orthogonal toggle force amplifier and the disk spring.The self-locking system

using of the application of orthogonal toggle force moving over the critical point of self-locking and force amplifying function

combination of the disk spring without energy consumption condition

can safely keep force in long time

and has obvious energy saving effect.