Double-spring single-mass-block acceleration switch

The invention provides a double-spring single-mass-block acceleration switch and belongs to the technical field of measurement. The double-spring single-mass-block acceleration switch is applied to areturn control system of a return type satellite. A mass block is adopted to provide a certain pre-tightening force; the pre-tightening force can be adjusted through two springs; and one electrode isused for adjusting an overload value. Since an overload value adjusting structure and a pre-tightening force adjusting structure are separated. According to other types of acceleration switches in theprior art, different springs are replaced to adjust pre-tightening forces, and acceleration values should be adjusted again, and therefore, some troubles can be brought about. However, with the double-spring single-mass-block acceleration switch of the invention adopted, the troubles in the prior art can be avoided. The application precision of the switch of the invention can be effectively improved. 一种双弹簧单质量块加速度开关，属于测量技术领