Hysteresis electromagnetic valve with delay effect

The invention belongs to the field of electromagnetic valves, and particularly relates to a hysteresis electromagnetic valve with a delay effect. The hysteresis electromagnetic valve with the delay effect comprises a valve pipe, wherein a shell and a fixing frame located inside the shell are mounted at the top end of the valve pipe, a bidirectional lead screw is rotationally connected inside the fixing frame, the bidirectional lead screw is connected with a gate plate located in the valve pipe through a transmission assembly. A magnetic block is installed at the top end of the fixing frame, anarmature is arranged at the top end of the magnetic block, a coil winding is wound around the armature, the two ends of the armature are connected with racks located on the outer side of the fixing frame through actuating rods, one side of each rack is meshed with a transmission gear, and one end of each transmission gear is fixedly connected with a rotating cylinder, rotating blocks are mountedat the both two ends of th