Novel normally open electromagnetic valve

The utility model discloses a novel normally open electromagnetic valve, and relates to the field of electromagnetic valve equipment. The novel normally-open electromagnetic valve comprises a valve body, a movable iron core, a fixed iron core, an electromagnetic coil, an O-shaped ring, a magnetism isolating pipe and a normally-open spring. The fixed iron core is provided with a channel used for medium circulation, the fixed iron core is installed on the valve body, and an outlet of the valve body is communicated with the channel. The first end of the normally open spring is embedded into the upper end of the fixed iron core, the second end of the normally open spring is embedded into the lower end of the movable iron core, and the normally open spring can push the movable iron core upwards; the movable iron core and the fixed iron core are sleeved with the magnetism isolating pipe, and the magnetism isolating pipe is in threaded connection with the valve body. According to the electromagnetic valve in the tec