Intelligent protection device of pneumatic stop valve

The utility model discloses an intelligent protection device of a pneumatic cut-off valve, which belongs to the technical field of protection devices and comprises a pneumatic valve main body, an air connection port is fixedly arranged at the center of the top end of the pneumatic valve main body, and a circular protection shell fixedly covers the center of the upper end face of a top plate of the pneumatic valve main body. A signal transmitting plate is fixedly arranged on the left side of an inner cavity of the circular protective shell, an air pressure detection head is fixedly arranged on the right side of the inner cavity of the circular protective shell, and a magnetic attraction piece is fixedly arranged on the edge of the lower end face of a connecting block connected with the top end of a push rod in the pneumatic valve body. Therefore, monitoring and feedback processing can be carried out on the condition of a circuit connected with the pneumatic stop valve, so that whether the pneumatic stop valve