Solenoid valve assembly

The electromagnetic valve assembly comprises a valve needle and a main valve element, and a main valve sealing block which is located at the lower end of the valve needle, matched with the valve needle to achieve sealing and coaxial with the main valve element is installed in the main valve element. The valve needle is installed in an inner hole of an outer valve rod of the electromagnetic valve through an iron core, and a sealing conical surface is arranged at the lower end of the valve needle. An axial air channel is formed in the middle of the main valve sealing block; an upper convex partinserted into an inner hole of the outer valve rod is arranged at the upper part of the main valve core, the upper convex part is coaxial with the inner hole of the outer valve rod, meanwhile, the valve needle axially penetrates through the upper convex part from the axis of the upper convex part, and the valve needle at the upper convex part moves and is guided; the electromagnetic valve is reasonable in design and conve