Air inlet valve with electromagnetic valve for guiding air

An upper valve body and a lower valve body are detachably connected in a sealed mode, the electromagnetic valve and a switch valve are arranged on the side face of the upper valve body, a first air port is formed in the bottom of the upper valve body, a second air port is formed in the side face of the upper valve body, and the first air port is communicated with the second air port. One end of the electromagnetic valve is communicated with the atmosphere, the other end of the electromagnetic valve is connected with an inlet M through an air guide pipe, three ports of the switch valve are an inlet A, an inlet R and an inlet P respectively, and a silencer is arranged at the inlet P; the side face of the upper valve body is provided with an M inlet, the joint of the upper valve body and the lower valve body is provided with a C inlet, and the middle-lower portion of the lower valve body is provided with an E inlet and an N inlet. An adjusting nut is arranged at a top through hole of the upper valve body, a firs