Lightweight vacuum pump silencer

The utility model belongs to the field of vacuum pumps, and particularly relates to a lightweight vacuum pump silencer which comprises a barrel. An air inlet pipe is fixedly installed on the front face of the barrel, a fixing plate is fixedly installed at the bottom of the air inlet pipe, a spring is fixedly installed at the bottom of the fixing plate, a mounting plate is fixedly installed at the bottom of the spring, a silencing pad is fixedly installed on the back face of the spring, and a mounting hole is formed in the top of the mounting plate. Through the arrangement of the air inlet pipe, connection with an exhaust port of the vacuum pump is facilitated, through the arrangement of the fixing plate, installation of a spring is facilitated, through the arrangement of the spring, vibration transmission between the silencer and the vacuum pump can be reduced, and therefore extra noise is reduced, through the arrangement of the installation plate, a silencing pad can be conveniently installed at the bottom o